From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <git-owner@vger.kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net
X-Spam-Level: 
X-Spam-ASN: AS53758 23.128.96.0/24
X-Spam-Status: No, score=-3.8 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED,
	DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,
	HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_PASS,
	SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by dcvr.yhbt.net (Postfix) with ESMTP id 01D6F1F9E0
	for <e@yhbt.net>; Fri, 24 Apr 2020 04:02:14 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1726072AbgDXEBn (ORCPT <rfc822;e@yhbt.net>);
        Fri, 24 Apr 2020 00:01:43 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57590 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-FAIL-OK-FAIL)
        by vger.kernel.org with ESMTP id S1725776AbgDXEBm (ORCPT
        <rfc822;git@vger.kernel.org>); Fri, 24 Apr 2020 00:01:42 -0400
Received: from mail-wm1-x32e.google.com (mail-wm1-x32e.google.com [IPv6:2a00:1450:4864:20::32e])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A0B95C09B045
        for <git@vger.kernel.org>; Thu, 23 Apr 2020 21:01:41 -0700 (PDT)
Received: by mail-wm1-x32e.google.com with SMTP id u127so9107982wmg.1
        for <git@vger.kernel.org>; Thu, 23 Apr 2020 21:01:41 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20161025;
        h=message-id:in-reply-to:references:from:date:subject:fcc
         :content-transfer-encoding:mime-version:to:cc;
        bh=SJ+xqDxu8RJd7z8wcJQLUqUuHeBzMDowoLqMzP2/L2U=;
        b=QsOnAn98owc9hcE3J5B8eiFOVSy10wzUAG3zdBSjUsOWpuif0XfTIwwws+Ufs50YUk
         SSTdmMMtRNoKwHxC92+w7aZhft7NHXpu69Qo140JzaA5XE9kpr4JZ3NSYLxPuHUvcmje
         D3GV/ns1F/0oflSOx5Kthgxaks6TWu+ijmH3+z5ge03iOBhmw/rkn8TTZbzznkNZtz7/
         rybOHQbWgfZhb7LsgA9Onek0BN0j+Zu+2MeGmcgoUPapAgF0tcknCL4TEAoJk/v/g/vs
         pQ4Zf/5GSFZvi5TjyDj3/RcE6TwJsb6FbxT58uU58aJuhBiIIeg/7OQ51WJc7n2c1GTQ
         AQBQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20161025;
        h=x-gm-message-state:message-id:in-reply-to:references:from:date
         :subject:fcc:content-transfer-encoding:mime-version:to:cc;
        bh=SJ+xqDxu8RJd7z8wcJQLUqUuHeBzMDowoLqMzP2/L2U=;
        b=EMKOuDsywziRepGD4oKRbvrVbgWV7dPftVPXBE99TuI+GBAbpSgNgzLIAMxcHObXNm
         voLOuFkvrUtjglf/xYkMTDHXglvr6y0yj+EjfU5l5yWUoCUHBsZ8/OvazTx8mwOCE40z
         LNIyeRDqkCpK/vzOHmtkl8TdFziQxk7SEDje6meR0LGHXeRFFyc+YEoEaPUaOQcoF9/R
         EowC3DyFq5BmKIMZNCTl5jjUffD6z70wohqMQLkhrvTiTGMJSN4TB7rNKDgRt8MJRIsW
         zTqDsm0bL1bh1QB7j+M/KPjxHCwB0Q+Twx4GPHfvpdmiPxNK0yi3VmzxHkJUG2hHAw00
         Uagg==
X-Gm-Message-State: AGi0PuYus0yYTBlarlhEzMzhUUWhm1hIkxfxlCpGRBwGNOVWlTG7ujTH
        IH6aACm7x6GvTw2SvMxwH08qQ4pV
X-Google-Smtp-Source: APiQypKW46c1RTeU7kCd8kU+JQxZ1okp7jul9nvu/EhipYdwwa480/Wv6uG8ts2EfgN3jTlmEKChlw==
X-Received: by 2002:a1c:b70a:: with SMTP id h10mr7736873wmf.172.1587700899635;
        Thu, 23 Apr 2020 21:01:39 -0700 (PDT)
Received: from [127.0.0.1] ([13.74.141.28])
        by smtp.gmail.com with ESMTPSA id b85sm1059388wmb.21.2020.04.23.21.01.39
        (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256);
        Thu, 23 Apr 2020 21:01:39 -0700 (PDT)
Message-Id: <70ab1f03dd5413256166bf9db47be47b746ea6b1.1587700897.git.gitgitgadget@gmail.com>
In-Reply-To: <pull.614.git.1587700897.gitgitgadget@gmail.com>
References: <pull.614.git.1587700897.gitgitgadget@gmail.com>
From:   "Sibi Siddharthan via GitGitGadget" <gitgitgadget@gmail.com>
Date:   Fri, 24 Apr 2020 04:01:30 +0000
Subject: [PATCH 1/8] Introduce CMake support for configuring Git on Linux
Fcc:    Sent
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
MIME-Version: 1.0
To:     git@vger.kernel.org
Cc:     Sibi Siddharthan <sibisiddharthan.github@gmail.com>,
        Sibi Siddharthan <sibisiddharthan.github@gmail.com>
Sender: git-owner@vger.kernel.org
Precedence: bulk
List-ID: <git.vger.kernel.org>
X-Mailing-List: git@vger.kernel.org

From: Sibi Siddharthan <sibisiddharthan.github@gmail.com>

At the moment, the recommended way to configure Git's builds is to
simply run `make`. If that does not work, the recommended strategy is to
look at the top of the `Makefile` to see whether any "Makefile knob" has
to be turned on/off, e.g. `make NO_OPENSSL=YesPlease`.

Alternatively, Git also has an `autoconf` setup which allows configuring
builds via `./configure [<option>...]`.

Both of these options are fine if the developer works on Unix or Linux.
But on Windows, we have to jump through hoops to configure a build
(read: we force the user to install a full Git for Windows SDK, which
occupies around two gigabytes (!) on disk and downloads about three
quarters of a gigabyte worth of Git objects).

To make this a little less awkward, the Git for Windows project offers
the `vs/master` branch which has a full Visual Studio solution generated
and committed. This branch can therefore be used to tinker with Git in
Visual Studio _without_ having to download the full Git for Windows SDK.
Unfortunatly, that branch is auto-generated from Git for Windows'
`master`. If a developer wants to tinker, say, with `pu`, they are out
of luck.

CMake was invented to make this sort of problem go away, by providing a
more standardized, cross-platform way to configure builds.

With a working support CMake, developers on Windows need only install
CMake, configure their build, load the generated Visual Studio solution
and immediately start modifying the code and build their own version of
Git. Likewise, developers on other platforms can use the convenient GUI
tools provided by CMake to configure their build.

So let's start building CMake support for Git.

This is only the first step, and to make it easier to review, it only
allows for configuring builds on the platform that is easiest to
configure for: Linux.

The CMake script checks whether the headers are present(eg. libgen.h),
whether the functions are present(eg. memmem), whether the funtions work
properly (eg. snprintf) and generate the required compile definitions
for the platform. The script also searches for the required libraries,
if it fails to find the required libraries the respective executables
won't be built.(eg. If libcurl is not found then git-remote-http won't
be built). This will help building Git easier.

With a CMake script an out of source build of git is possible resulting
in a clean source tree.

Note: earlier endeavors on the Git mailing list to introduce CMake ended
up in dead water. The primary reason for that was that reviewers
_expected_ CMake support to fall out of maintenance, unless the
contributor would promise to keep an eye on keeping CMake support up to
date. However, in the meantime, support for automated testing has been
introduced in Git's source code, and a later patch will modify the
(still experimental) GitHub workflow to continually verify that CMake
support is still complete. That will make maintenance reasonably easy.

Note: this patch asks for the minimum version v3.14 of CMake (which is
not all that old as of time of writing) because that is the first
version to offer a platform-independent way to generate hardlinks as
part of the build. This is needed to generate all those hardlinks for
the built-in commands of Git.

Instructions to run CMake:

cmake `relative-path-to-srcdir` -DCMAKE_BUILD_TYPE=Release

Possible build configurations(-DCMAKE_BUILD_TYPE) with corresponding
compiler flags
Debug : -g
Release: -O3
RelWithDebInfo : -O2 -g
MinSizeRel : -Os
empty(default) :

NOTE: -DCMAKE_BUILD_TYPE is optional

This process generates a Makefile.
Then run `make` to build Git.

NOTE: By default CMake uses Makefile as the build tool on Linux, to use
another tool say `ninja` add this to the command line when configuring.
`-G Ninja`

Signed-off-by: Sibi Siddharthan <sibisiddharthan.github@gmail.com>
---
 CMakeLists.txt | 528 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 528 insertions(+)
 create mode 100644 CMakeLists.txt

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 00000000000..73703bd321f
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,528 @@
+#
+#	Copyright (c) 2020 Sibi Siddharthan
+#
+
+cmake_minimum_required(VERSION 3.14)
+
+#Parse GIT-VERSION-GEN to get the version
+file(STRINGS ${CMAKE_SOURCE_DIR}/GIT-VERSION-GEN git_version REGEX "DEF_VER=v(.*)")
+string(REPLACE "DEF_VER=v" "" git_version ${git_version})
+string(REPLACE ".GIT" ".0" git_version ${git_version})#for building from a snapshot
+
+project(git
+	VERSION ${git_version}
+	LANGUAGES C)
+
+
+include(CheckTypeSize)
+include(CheckCSourceRuns)
+include(CheckCSourceCompiles)
+include(CheckIncludeFile)
+include(CheckFunctionExists)
+include(CheckSymbolExists)
+include(CheckStructHasMember)
+
+find_package(ZLIB REQUIRED)
+find_package(CURL)
+find_package(EXPAT)
+find_package(Iconv)
+find_package(Intl)
+
+if(NOT Intl_FOUND)
+	add_compile_definitions(NO_GETTEXT)
+	if(NOT Iconv_FOUND)
+		add_compile_definitions(NO_ICONV)
+	endif()
+endif()
+
+include_directories(SYSTEM ${ZLIB_INCLUDE_DIRS})
+if(CURL_FOUND)
+	include_directories(SYSTEM ${CURL_INCLUDE_DIRS})
+endif()
+if(EXPAT_FOUND)
+	include_directories(SYSTEM ${EXPAT_INCLUDE_DIRS})
+endif()
+if(Iconv_FOUND)
+	include_directories(SYSTEM ${Iconv_INCLUDE_DIRS})
+endif()
+if(Intl_FOUND)
+	include_directories(SYSTEM ${Intl_INCLUDE_DIRS})
+endif()
+
+find_program(SH_EXE sh)
+
+#default behaviour
+include_directories(${CMAKE_SOURCE_DIR})
+add_compile_definitions(GIT_HOST_CPU="${CMAKE_SYSTEM_PROCESSOR}")
+add_compile_definitions(SHA256_BLK INTERNAL_QSORT RUNTIME_PREFIX)
+add_compile_definitions(NO_OPENSSL SHA1_DC SHA1DC_NO_STANDARD_INCLUDES
+			SHA1DC_INIT_SAFE_HASH_DEFAULT=0
+			SHA1DC_CUSTOM_INCLUDE_SHA1_C="cache.h"
+			SHA1DC_CUSTOM_INCLUDE_UBC_CHECK_C="git-compat-util.h" )
+list(APPEND compat_SOURCES sha1dc_git.c sha1dc/sha1.c sha1dc/ubc_check.c block-sha1/sha1.c sha256/block/sha256.c compat/qsort_s.c)
+
+
+add_compile_definitions(PAGER_ENV="LESS=FRX LV=-c"
+			ETC_GITATTRIBUTES="etc/gitattributes"
+			ETC_GITCONFIG="etc/gitconfig"
+			GIT_EXEC_PATH="libexec/git-core"
+			GIT_LOCALE_PATH="share/locale"
+			GIT_MAN_PATH="share/man"
+			GIT_INFO_PATH="share/info"
+			GIT_HTML_PATH="share/doc/git-doc"
+			DEFAULT_HELP_FORMAT="html"
+			DEFAULT_GIT_TEMPLATE_DIR="share/git-core/templates"
+			GIT_VERSION="${PROJECT_VERSION}.GIT"
+			GIT_USER_AGENT="git/${PROJECT_VERSION}.GIT"
+			BINDIR="bin"
+			GIT_BUILT_FROM_COMMIT="")
+
+set(FALLBACK_RUNTIME_PREFIX /home/$ENV{USER})
+add_compile_definitions(FALLBACK_RUNTIME_PREFIX="${FALLBACK_RUNTIME_PREFIX}")
+
+add_compile_definitions(PROCFS_EXECUTABLE_PATH="/proc/self/exe" HAVE_DEV_TTY )
+list(APPEND compat_SOURCES unix-socket.c)
+
+#header checks
+check_include_file(libgen.h HAVE_LIBGEN_H)
+if(NOT HAVE_LIBGEN_H)
+	add_compile_definitions(NO_LIBGEN_H)
+	list(APPEND compat_SOURCES compat/basename.c)
+endif()
+
+check_include_file(sys/sysinfo.h HAVE_SYSINFO)
+if(HAVE_SYSINFO)
+	add_compile_definitions(HAVE_SYSINFO)
+endif()
+
+check_c_source_compiles("
+#include <alloca.h>
+int
+main ()
+{
+char *p = (char *) alloca (2 * sizeof (int));
+	if (p) return 0;
+	return 0;
+}"
+HAVE_ALLOCA_H)
+if(HAVE_ALLOCA_H)
+	add_compile_definitions(HAVE_ALLOCA_H)
+endif()
+
+check_include_file(strings.h HAVE_STRINGS_H)
+if(HAVE_STRINGS_H)
+	add_compile_definitions(HAVE_STRINGS_H)
+endif()
+
+check_include_file(sys/select.h HAVE_SYS_SELECT_H)
+if(NOT HAVE_SYS_SELECT_H)
+	add_compile_definitions(NO_SYS_SELECT_H)
+endif()
+
+check_include_file(sys/poll.h HAVE_SYS_POLL_H)
+if(NOT HAVE_SYS_POLL_H)
+	add_compile_definitions(NO_SYS_POLL_H)
+endif()
+
+check_include_file(poll.h HAVE_POLL_H)
+if(NOT HAVE_POLL_H)
+	add_compile_definitions(NO_POLL_H)
+endif()
+
+check_include_file(inttypes.h HAVE_INTTYPES_H)
+if(NOT HAVE_INTTYPES_H)
+	add_compile_definitions(NO_INTTYPES_H)
+endif()
+
+check_include_file(paths.h HAVE_PATHS_H)
+if(HAVE_PATHS_H)
+	add_compile_definitions(HAVE_PATHS_H)
+endif()
+
+#function checks
+set(function_checks
+	strcasestr memmem strlcpy strtoimax strtoumax strtoull
+	setenv  mkdtemp poll pread  memmem unsetenv hstrerror)
+
+foreach(f ${function_checks})
+	string(TOUPPER ${f} uf)
+	check_function_exists(${f} HAVE_${uf})
+	if(NOT HAVE_${uf})
+		add_compile_definitions(NO_${uf})
+	endif()
+endforeach()
+
+if(NOT HAVE_POLL_H OR NOT HAVE_SYS_POLL_H OR NOT HAVE_POLL)
+	include_directories(compat/poll)
+	add_compile_definitions(NO_POLL)
+	list(APPEND compat_SOURCES compat/poll/poll.c)
+endif()
+
+if(NOT HAVE_STRCASESTR)
+	list(APPEND compat_SOURCES compat/strcasestr.c)
+endif()
+
+if(NOT HAVE_STRLCPY)
+	list(APPEND compat_SOURCES compat/strlcpy.c)
+endif()
+
+if(NOT HAVE_STRTOUMAX)
+	list(APPEND compat_SOURCES compat/strtoumax.c compat/strtoimax.c)
+endif()
+
+if(NOT HAVE_SETENV)
+	list(APPEND compat_SOURCES compat/setenv.c)
+endif()
+
+if(NOT HAVE_MKDTEMP)
+	list(APPEND compat_SOURCES compat/mkdtemp.c)
+endif()
+
+if(NOT HAVE_PREAD)
+	list(APPEND compat_SOURCES compat/pread.c)
+endif()
+
+if(NOT HAVE_MEMMEM)
+	list(APPEND compat_SOURCES compat/memmem.c)
+endif()
+
+if(NOT WIN32)
+	if(NOT HAVE_UNSETENV)
+		list(APPEND compat_SOURCES compat/unsetenv.c)
+	endif()
+
+	if(NOT HAVE_HSTRERROR)
+		list(APPEND compat_SOURCES compat/hstrerror.c)
+	endif()
+endif()
+
+check_function_exists(getdelim HAVE_GETDELIM)
+if(HAVE_GETDELIM)
+	add_compile_definitions(HAVE_GETDELIM)
+endif()
+
+check_function_exists(clock_gettime HAVE_CLOCK_GETTIME)
+check_symbol_exists(CLOCK_MONOTONIC "time.h" HAVE_CLOCK_MONOTONIC)
+if(HAVE_CLOCK_GETTIME)
+	add_compile_definitions(HAVE_CLOCK_GETTIME)
+endif()
+if(HAVE_CLOCK_MONOTONIC)
+	add_compile_definitions(HAVE_CLOCK_MONOTONIC)
+endif()
+
+
+#compile checks
+check_c_source_runs("
+#include<stdio.h>
+#include<stdarg.h>
+#include<string.h>
+#include<stdlib.h>
+int test_vsnprintf(char *str, size_t maxsize, const char *format, ...)
+{
+	int ret;
+	va_list ap;
+
+	va_start(ap, format);
+	ret = vsnprintf(str, maxsize, format, ap);
+	va_end(ap);
+	return ret;
+}
+
+int
+main ()
+{
+	char buf[6];
+	if (test_vsnprintf(buf, 3, \"%s\", \"12345\") != 5
+		|| strcmp(buf, \"12\")) return 1;
+	if (snprintf(buf, 3, \"%s\", \"12345\") != 5
+		|| strcmp(buf, \"12\")) return 1;
+
+	return 0;
+}"
+SNPRINTF_OK)
+if(NOT SNPRINTF_OK)
+	add_compile_definitions(SNPRINTF_RETURNS_BOGUS)
+	list(APPEND compat_SOURCES compat/snprintf.c)
+endif()
+
+check_c_source_runs("
+#include<stdio.h>
+int
+main ()
+{
+	FILE *f = fopen(\".\", \"r\");
+	return f != NULL;
+
+	return 0;
+}"
+FREAD_READS_DIRECTORIES_NO)
+if(NOT FREAD_READS_DIRECTORIES_NO)
+	add_compile_definitions(FREAD_READS_DIRECTORIES)
+	list(APPEND compat_SOURCES compat/fopen.c)
+endif()
+
+check_c_source_compiles("
+#include <regex.h>
+#ifndef REG_STARTEND
+#error oops we dont have it
+#endif
+int main(){return 0;}"
+HAVE_REGEX)
+if(NOT HAVE_REGEX)
+	include_directories(compat/regex )
+	list(APPEND compat_SOURCES compat/regex/regex.c )
+	add_compile_definitions(NO_REGEX NO_MBSUPPORT GAWK)
+endif()
+
+
+check_c_source_compiles("
+#include <stddef.h>
+#include <sys/types.h>
+#include <sys/sysctl.h>
+
+int
+main ()
+{
+	int val, mib[2];
+	size_t len;
+
+	mib[0] = CTL_HW;
+	mib[1] = 1;
+	len = sizeof(val);
+	return sysctl(mib, 2, &val, &len, NULL, 0) ? 1 : 0;
+
+	return 0;
+}"
+HAVE_BSD_SYSCTL)
+if(HAVE_BSD_SYSCTL)
+	add_compile_definitions(HAVE_BSD_SYSCTL)
+endif()
+
+#programs
+set(PROGRAMS_BUILT
+	git git-bugreport git-credential-store git-daemon git-fast-import git-http-backend git-sh-i18n--envsubst
+	git-shell git-remote-testsvn git-credential-cache git-credential-cache--daemon)
+
+if(NOT CURL_FOUND)
+	list(APPEND excluded_progs git-http-fetch git-http-push)
+	add_compile_definitions(NO_CURL)
+	message(WARNING "git-http-push and git-http-fetch will not be built")
+else()
+	list(APPEND PROGRAMS_BUILT git-http-fetch git-http-push git-imap-send git-remote-http)
+	if(CURL_VERSION_STRING VERSION_GREATER_EQUAL 7.34.0)
+		add_compile_definitions(USE_CURL_FOR_IMAP_SEND)
+	endif()
+endif()
+
+if(NOT EXPAT_FOUND)
+	list(APPEND excluded_progs git-http-push)
+	add_compile_definitions(NO_EXPAT)
+else()
+	list(APPEND PROGRAMS_BUILT git-http-push)
+	if(EXPAT_VERSION_STRING VERSION_LESS_EQUAL 1.2)
+		add_compile_definitions(EXPAT_NEEDS_XMLPARSE_H)
+	endif()
+endif()
+
+list(REMOVE_DUPLICATES excluded_progs)
+list(REMOVE_DUPLICATES PROGRAMS_BUILT)
+
+
+foreach(p ${excluded_progs})
+	list(APPEND EXCLUSION_PROGS --exclude-program ${p} )
+endforeach()
+
+#for comparing null values
+list(APPEND EXCLUSION_PROGS empty)
+set(EXCLUSION_PROGS_CACHE ${EXCLUSION_PROGS} CACHE STRING "Programs not built" FORCE)
+
+if(NOT EXISTS ${CMAKE_SOURCE_DIR}/command-list.h OR NOT EXCLUSION_PROGS_CACHE STREQUAL EXCLUSION_PROGS)
+	list(REMOVE_ITEM EXCLUSION_PROGS empty)
+	message("Generating command-list.h")
+	execute_process(COMMAND ${SH_EXE} ${CMAKE_SOURCE_DIR}/generate-cmdlist.sh ${EXCLUSION_PROGS} command-list.txt
+			WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+			OUTPUT_FILE ${CMAKE_SOURCE_DIR}/command-list.h)
+endif()
+
+if(NOT EXISTS ${CMAKE_SOURCE_DIR}/config-list.h)
+	message("Generating config-list.h")
+	execute_process(COMMAND ${SH_EXE} ${CMAKE_SOURCE_DIR}/generate-configlist.sh
+			WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+			OUTPUT_FILE ${CMAKE_SOURCE_DIR}/config-list.h)
+endif()
+
+
+#build
+set(libgit_SOURCES
+	abspath.c add-interactive.c add-patch.c advice.c alias.c
+	alloc.c apply.c archive.c archive-tar.c archive-zip.c argv-array.c
+	attr.c base85.c bisect.c blame.c blob.c bloom.c branch.c bulk-checkin.c
+	bundle.c cache-tree.c chdir-notify.c checkout.c color.c column.c
+	combine-diff.c commit.c commit-graph.c commit-reach.c compat/obstack.c
+	compat/terminal.c config.c connect.c connected.c convert.c copy.c credential.c
+	csum-file.c ctype.c date.c decorate.c delta-islands.c diffcore-break.c
+	diffcore-delta.c diffcore-order.c diffcore-pickaxe.c diffcore-rename.c
+	diff-delta.c diff-lib.c diff-no-index.c diff.c dir.c dir-iterator.c editor.c
+	entry.c environment.c ewah/bitmap.c ewah/ewah_bitmap.c ewah/ewah_io.c
+	ewah/ewah_rlw.c exec-cmd.c fetch-negotiator.c fetch-pack.c fmt-merge-msg.c fsck.c fsmonitor.c
+	gettext.c gpg-interface.c graph.c grep.c hashmap.c linear-assignment.c help.c hex.c
+	ident.c interdiff.c json-writer.c kwset.c levenshtein.c line-log.c line-range.c list-objects.c
+	list-objects-filter.c list-objects-filter-options.c ll-merge.c lockfile.c
+	log-tree.c ls-refs.c mailinfo.c mailmap.c match-trees.c mem-pool.c merge.c merge-blobs.c
+	merge-recursive.c mergesort.c midx.c name-hash.c negotiator/default.c
+	negotiator/skipping.c notes.c notes-cache.c notes-merge.c notes-utils.c object.c oidmap.c
+	oidset.c oid-array.c packfile.c pack-bitmap.c pack-bitmap-write.c pack-check.c pack-objects.c
+	pack-revindex.c pack-write.c pager.c parse-options.c parse-options-cb.c patch-delta.c
+	patch-ids.c path.c pathspec.c pkt-line.c preload-index.c pretty.c prio-queue.c progress.c
+	promisor-remote.c prompt.c protocol.c prune-packed.c quote.c range-diff.c reachable.c read-cache.c rebase.c
+	rebase-interactive.c reflog-walk.c refs.c refs/files-backend.c refs/iterator.c
+	refs/packed-backend.c refs/ref-cache.c refspec.c ref-filter.c remote.c replace-object.c
+	repo-settings.c repository.c rerere.c reset.c resolve-undo.c revision.c run-command.c
+	send-pack.c sequencer.c serve.c server-info.c setup.c sha1-lookup.c
+	sha1-file.c sha1-name.c shallow.c sideband.c sigchain.c split-index.c
+	stable-qsort.c strbuf.c streaming.c string-list.c submodule.c submodule-config.c
+	sub-process.c symlinks.c tag.c tempfile.c thread-utils.c tmp-objdir.c
+	trace.c trace2.c trace2/tr2_cfg.c trace2/tr2_cmd_name.c trace2/tr2_dst.c
+	trace2/tr2_sid.c trace2/tr2_sysenv.c trace2/tr2_tbuf.c trace2/tr2_tgt_event.c
+	trace2/tr2_tgt_normal.c trace2/tr2_tgt_perf.c trace2/tr2_tls.c trailer.c transport.c
+	transport-helper.c tree-diff.c tree.c tree-walk.c unpack-trees.c upload-pack.c url.c
+	urlmatch.c usage.c userdiff.c utf8.c varint.c version.c versioncmp.c walker.c wildmatch.c
+	worktree.c wrapper.c write-or-die.c ws.c wt-status.c xdiff-interface.c
+	zlib.c)
+
+add_library(libgit ${libgit_SOURCES} ${compat_SOURCES})
+
+set(libxdiff_SOURCES
+	xdiff/xdiffi.c xdiff/xprepare.c xdiff/xutils.c xdiff/xemit.c
+	xdiff/xmerge.c xdiff/xpatience.c xdiff/xhistogram.c)
+add_library(xdiff STATIC ${libxdiff_SOURCES})
+
+set(libvcs-svn_SOURCES
+	vcs-svn/line_buffer.c vcs-svn/sliding_window.c vcs-svn/fast_export.c
+	vcs-svn/svndiff.c vcs-svn/svndump.c)
+add_library(vcs-svn STATIC ${libvcs-svn_SOURCES})
+
+#link all required libraries to common-main
+add_library(common-main OBJECT common-main.c)
+target_link_libraries(common-main libgit xdiff ${ZLIB_LIBRARIES} pthread rt)
+if(Intl_FOUND)
+	target_link_libraries(common-main ${Intl_LIBRARIES})
+endif()
+if(Iconv_FOUND)
+	target_link_libraries(common-main ${Iconv_LIBRARIES})
+endif()
+
+
+set(git_SOURCES
+	builtin/add.c builtin/am.c builtin/annotate.c builtin/apply.c
+	builtin/archive.c builtin/bisect--helper.c builtin/blame.c
+	builtin/branch.c builtin/bundle.c builtin/cat-file.c builtin/check-attr.c
+	builtin/check-ignore.c builtin/check-mailmap.c builtin/check-ref-format.c
+	builtin/checkout-index.c builtin/checkout.c builtin/clean.c
+	builtin/clone.c builtin/column.c builtin/commit-tree.c
+	builtin/commit.c builtin/commit-graph.c builtin/config.c
+	builtin/count-objects.c builtin/credential.c builtin/describe.c
+	builtin/diff-files.c builtin/diff-index.c builtin/diff-tree.c
+	builtin/diff.c builtin/difftool.c builtin/env--helper.c
+	builtin/fast-export.c builtin/fetch-pack.c builtin/fetch.c builtin/fmt-merge-msg.c
+	builtin/for-each-ref.c builtin/fsck.c builtin/gc.c
+	builtin/get-tar-commit-id.c builtin/grep.c builtin/hash-object.c
+	builtin/help.c builtin/index-pack.c builtin/init-db.c
+	builtin/interpret-trailers.c builtin/log.c builtin/ls-files.c
+	builtin/ls-remote.c builtin/ls-tree.c builtin/mailinfo.c builtin/mailsplit.c
+	builtin/merge.c builtin/merge-base.c builtin/merge-file.c builtin/merge-index.c
+	builtin/merge-ours.c builtin/merge-recursive.c builtin/merge-tree.c
+	builtin/mktag.c builtin/mktree.c builtin/multi-pack-index.c builtin/mv.c
+	builtin/name-rev.c builtin/notes.c builtin/pack-objects.c builtin/pack-redundant.c
+	builtin/pack-refs.c builtin/patch-id.c builtin/prune-packed.c builtin/prune.c
+	builtin/pull.c builtin/push.c builtin/range-diff.c builtin/read-tree.c
+	builtin/rebase.c builtin/receive-pack.c builtin/reflog.c builtin/remote.c
+	builtin/remote-ext.c builtin/remote-fd.c builtin/repack.c builtin/replace.c
+	builtin/rerere.c builtin/reset.c builtin/rev-list.c builtin/rev-parse.c
+	builtin/revert.c builtin/rm.c builtin/send-pack.c builtin/shortlog.c
+	builtin/show-branch.c builtin/show-index.c builtin/show-ref.c
+	builtin/sparse-checkout.c builtin/stash.c builtin/stripspace.c
+	builtin/submodule--helper.c builtin/symbolic-ref.c builtin/tag.c
+	builtin/unpack-file.c builtin/unpack-objects.c builtin/update-index.c
+	builtin/update-ref.c builtin/update-server-info.c builtin/upload-archive.c
+	builtin/upload-pack.c builtin/var.c builtin/verify-commit.c builtin/verify-pack.c
+	builtin/verify-tag.c builtin/worktree.c builtin/write-tree.c)
+
+add_executable(git git.c ${git_SOURCES})
+target_link_libraries(git common-main )
+
+add_executable(git-bugreport bugreport.c)
+target_link_libraries(git-bugreport common-main)
+
+add_executable(git-credential-store credential-store.c)
+target_link_libraries(git-credential-store common-main)
+
+add_executable(git-daemon daemon.c)
+target_link_libraries(git-daemon common-main)
+
+add_executable(git-fast-import fast-import.c)
+target_link_libraries(git-fast-import common-main)
+
+add_executable(git-http-backend http-backend.c)
+target_link_libraries(git-http-backend common-main)
+
+add_executable(git-sh-i18n--envsubst sh-i18n--envsubst.c)
+target_link_libraries(git-sh-i18n--envsubst common-main)
+
+add_executable(git-shell shell.c)
+target_link_libraries(git-shell common-main)
+
+if(CURL_FOUND)
+	add_library(http_obj OBJECT http.c)
+
+	add_executable(git-imap-send imap-send.c)
+	target_link_libraries(git-imap-send http_obj common-main ${CURL_LIBRARIES})
+
+	add_executable(git-http-fetch http-walker.c http-fetch.c)
+	target_link_libraries(git-http-fetch http_obj common-main ${CURL_LIBRARIES})
+
+	add_executable(git-remote-http http-walker.c remote-curl.c)
+	target_link_libraries(git-remote-http http_obj common-main ${CURL_LIBRARIES} )
+
+	if(EXPAT_FOUND)
+		add_executable(git-http-push http-push.c)
+		target_link_libraries(git-http-push http_obj common-main ${CURL_LIBRARIES} ${EXPAT_LIBRARIES})
+	endif()
+endif()
+
+add_executable(git-remote-testsvn remote-testsvn.c)
+target_link_libraries(git-remote-testsvn common-main vcs-svn)
+
+add_executable(git-credential-cache credential-cache.c)
+target_link_libraries(git-credential-cache common-main)
+
+add_executable(git-credential-cache--daemon credential-cache--daemon.c)
+target_link_libraries(git-credential-cache--daemon common-main)
+
+
+set(git_builtin_extra
+	cherry cherry-pick format-patch fsck-objects
+	init merge-subtree restore show
+	stage status switch whatchanged)
+
+#Creating hardlinks
+foreach(s ${git_SOURCES} ${git_builtin_extra})
+	string(REPLACE "builtin/" "" s ${s})
+	string(REPLACE ".c" "" s ${s})
+	file(APPEND ${CMAKE_BINARY_DIR}/CreateLinks.cmake "file(CREATE_LINK git git-${s})\n")
+	list(APPEND git_links ${CMAKE_BINARY_DIR}/git-${s})
+endforeach()
+
+if(CURL_FOUND)
+	set(remote_exes
+		git-remote-https git-remote-ftp git-remote-ftps)
+	foreach(s ${remote_exes})
+		file(APPEND ${CMAKE_BINARY_DIR}/CreateLinks.cmake "file(CREATE_LINK git-remote-http ${s})\n")
+		list(APPEND git_http_links ${CMAKE_BINARY_DIR}/${s})
+	endforeach()
+endif()
+
+add_custom_command(OUTPUT ${git_links} ${git_http_links}
+		COMMAND ${CMAKE_COMMAND} -P ${CMAKE_BINARY_DIR}/CreateLinks.cmake
+		DEPENDS git git-remote-http)
+add_custom_target(git-links ALL DEPENDS ${git_links} ${git_http_links})
\ No newline at end of file
-- 
gitgitgadget