diff mbox series

[v2,06/11] cmake: support for building git on windows with mingw

Message ID 00cae10bbb7870b27202642d6e1e284a97a3c5b7.1589302254.git.gitgitgadget@gmail.com (mailing list archive)
State New, archived
Headers show
Series CMake build system for git | expand

Commit Message

Linus Arver via GitGitGadget May 12, 2020, 4:50 p.m. UTC
From: Sibi Siddharthan <sibisiddharthan.github@gmail.com>

This patch facilitates building git on Windows with CMake using MinGW

NOTE: The funtions unsetenv and hstrerror are not checked in Windows
builds.
Reasons
NO_UNSETENV is not compatible with Windows builds.
lines 262-264 compat/mingw.h

compat/mingw.h(line 25) provides a definition of hstrerror which
conflicts with the definition provided in
git-compat-util.h(lines 733-736).

To use CMake on Windows with MinGW do this:
cmake `relative-path-to-srcdir` -G "MinGW Makefiles"

Changes:
Changed the error message when sh.exe is not found on Windows as
suggested by Philip Oakley <philipoakley@iee.email>

Signed-off-by: Sibi Siddharthan <sibisiddharthan.github@gmail.com>
---
 CMakeLists.txt | 121 +++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 98 insertions(+), 23 deletions(-)

Comments

Đoàn Trần Công Danh May 14, 2020, 3:25 p.m. UTC | #1
Hi Sibi,

On 2020-05-12 16:50:49+0000, Sibi Siddharthan via GitGitGadget <gitgitgadget@gmail.com> wrote:
> From: Sibi Siddharthan <sibisiddharthan.github@gmail.com>
> diff --git a/CMakeLists.txt b/CMakeLists.txt
> index 47d3f3c2866..9625e41886f 100644
> --- a/CMakeLists.txt
> +++ b/CMakeLists.txt
> @@ -13,9 +13,12 @@ project(git
>  	VERSION ${git_version}
>  	LANGUAGES C)
>  
> +

This newline maybe left from debugging. (and other new newline below).

> +#Platform Specific
> +if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")

Please drop ${} around CMAKE_SYSTEM_NAME, here (and other if)
Or user may accidental messed up.
------------8<----------------
$ cat CMakeLists.txt
project(test)
message("This is ${CMAKE_SYSTEM_NAME}")
if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
	message("Yes, STREQUAL Windows")
endif()
$ cmake . -DLinux=Windows
This is Linux
Yes, STREQUAL Windows
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp
---------------->8--------------
Sibi Siddharthan May 14, 2020, 6:27 p.m. UTC | #2
On Thu, May 14, 2020 at 8:56 PM Đoàn Trần Công Danh
<congdanhqx@gmail.com> wrote:
>
> Hi Sibi,
>
> On 2020-05-12 16:50:49+0000, Sibi Siddharthan via GitGitGadget <gitgitgadget@gmail.com> wrote:
> > From: Sibi Siddharthan <sibisiddharthan.github@gmail.com>
> > diff --git a/CMakeLists.txt b/CMakeLists.txt
> > index 47d3f3c2866..9625e41886f 100644
> > --- a/CMakeLists.txt
> > +++ b/CMakeLists.txt
> > @@ -13,9 +13,12 @@ project(git
> >       VERSION ${git_version}
> >       LANGUAGES C)
> >
> > +
>
> This newline maybe left from debugging. (and other new newline below).
>
> > +#Platform Specific
> > +if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
>
> Please drop ${} around CMAKE_SYSTEM_NAME, here (and other if)
> Or user may accidental messed up.
> ------------8<----------------
> $ cat CMakeLists.txt
> project(test)
> message("This is ${CMAKE_SYSTEM_NAME}")
> if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
>         message("Yes, STREQUAL Windows")
> endif()
> $ cmake . -DLinux=Windows
> This is Linux
> Yes, STREQUAL Windows
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /tmp
> ---------------->8--------------
>

Thanks for pointing it out, will fix it ASAP.

Thank You,
Sibi Siddharthan


>
> --
> Danh
diff mbox series

Patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 47d3f3c2866..9625e41886f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -13,9 +13,12 @@  project(git
 	VERSION ${git_version}
 	LANGUAGES C)
 
+
 #TODO gitk git-gui gitweb
+#TODO Enable NLS on windows natively
 #TODO Add pcre support
 
+
 include(CheckTypeSize)
 include(CheckCSourceRuns)
 include(CheckCSourceCompiles)
@@ -31,6 +34,7 @@  find_package(EXPAT)
 find_package(Iconv)
 find_package(Intl)
 
+
 if(NOT Intl_FOUND)
 	add_compile_definitions(NO_GETTEXT)
 	if(NOT Iconv_FOUND)
@@ -53,6 +57,17 @@  if(Intl_FOUND)
 endif()
 
 find_program(SH_EXE sh)
+if(NOT SH_EXE)
+	message(FATAL_ERROR "sh: shell interpreter was not found in your path, please install one."
+			"On Windows, you can get it as part of 'Git for Windows' install at https://gitforwindows.org/")
+endif()
+
+if(WIN32)
+	find_program(WINDRES_EXE windres)
+	if(NOT WINDRES_EXE)
+		message(FATAL_ERROR "Install windres on Windows for resource files")
+	endif()
+endif()
 
 find_program(MSGFMT_EXE msgfmt)
 if(NOT MSGFMT_EXE)
@@ -85,11 +100,39 @@  add_compile_definitions(PAGER_ENV="LESS=FRX LV=-c"
 			BINDIR="bin"
 			GIT_BUILT_FROM_COMMIT="")
 
-set(FALLBACK_RUNTIME_PREFIX /home/$ENV{USER})
-add_compile_definitions(FALLBACK_RUNTIME_PREFIX="${FALLBACK_RUNTIME_PREFIX}")
+if(WIN32)
+	set(FALLBACK_RUNTIME_PREFIX /mingw64)
+	add_compile_definitions(FALLBACK_RUNTIME_PREFIX="${FALLBACK_RUNTIME_PREFIX}")
+else()
+	set(FALLBACK_RUNTIME_PREFIX /home/$ENV{USER})
+	add_compile_definitions(FALLBACK_RUNTIME_PREFIX="${FALLBACK_RUNTIME_PREFIX}")
+endif()
 
-add_compile_definitions(PROCFS_EXECUTABLE_PATH="/proc/self/exe" HAVE_DEV_TTY )
-list(APPEND compat_SOURCES unix-socket.c)
+
+#Platform Specific
+if(${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
+	include_directories(compat/win32)
+	add_compile_definitions(HAVE_ALLOCA_H NO_POSIX_GOODIES NATIVE_CRLF NO_UNIX_SOCKETS WIN32
+				_CONSOLE DETECT_MSYS_TTY STRIP_EXTENSION=".exe"  NO_SYMLINK_HEAD UNRELIABLE_FSTAT
+				NOGDI OBJECT_CREATION_MODE=1 __USE_MINGW_ANSI_STDIO=0 NO_ST_BLOCKS_IN_STRUCT_STAT
+				USE_NED_ALLOCATOR OVERRIDE_STRDUP MMAP_PREVENTS_DELETE USE_WIN32_MMAP
+				UNICODE _UNICODE HAVE_WPGMPTR ENSURE_MSYSTEM_IS_SET)
+	list(APPEND compat_SOURCES compat/mingw.c compat/winansi.c compat/win32/path-utils.c
+		compat/win32/pthread.c compat/win32mmap.c compat/win32/syslog.c
+		compat/win32/trace2_win32_process_info.c compat/win32/dirent.c
+		compat/nedmalloc/nedmalloc.c compat/strdup.c)
+	set(NO_UNIX_SOCKETS 1)
+
+elseif(${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
+	add_compile_definitions(PROCFS_EXECUTABLE_PATH="/proc/self/exe" HAVE_DEV_TTY )
+	list(APPEND compat_SOURCES unix-socket.c)
+endif()
+
+if(WIN32)
+	set(EXE_EXTENSION .exe)
+else()
+	set(EXE_EXTENSION)
+endif()
 
 #header checks
 check_include_file(libgen.h HAVE_LIBGEN_H)
@@ -150,7 +193,12 @@  endif()
 #function checks
 set(function_checks
 	strcasestr memmem strlcpy strtoimax strtoumax strtoull
-	setenv  mkdtemp poll pread  memmem unsetenv hstrerror)
+	setenv  mkdtemp poll pread  memmem)
+
+#unsetenv,hstrerror are incompatible with windows build
+if(NOT WIN32)
+	list(APPEND function_checks unsetenv hstrerror)
+endif()
 
 foreach(f ${function_checks})
 	string(TOUPPER ${f} uf)
@@ -309,7 +357,13 @@  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)
+	git-shell git-remote-testsvn)
+
+if(NO_UNIX_SOCKETS)
+	list(APPEND excluded_progs git-credential-cache git-credential-cache--daemon)
+else()
+	list(APPEND PROGRAMS_BUILT git-credential-cache git-credential-cache--daemon)
+endif()
 
 if(NOT CURL_FOUND)
 	list(APPEND excluded_progs git-http-fetch git-http-push)
@@ -410,15 +464,34 @@  set(libvcs-svn_SOURCES
 	vcs-svn/svndiff.c vcs-svn/svndump.c)
 add_library(vcs-svn STATIC ${libvcs-svn_SOURCES})
 
+#add git.rc for gcc
+if(WIN32)
+	add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/git.res
+			COMMAND ${WINDRES_EXE} -O coff -DMAJOR=${PROJECT_VERSION_MAJOR} -DMINOR=${PROJECT_VERSION_MINOR}
+				-DMICRO=${PROJECT_VERSION_PATCH} -DPATCHLEVEL=0 -DGIT_VERSION="\\\"${PROJECT_VERSION}.GIT\\\""
+				-i ${CMAKE_SOURCE_DIR}/git.rc -o ${CMAKE_BINARY_DIR}/git.res
+			WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+			VERBATIM)
+	add_custom_target(git-rc DEPENDS ${CMAKE_BINARY_DIR}/git.res)
+endif()
+
 #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)
+
+target_link_libraries(common-main libgit xdiff ${ZLIB_LIBRARIES})
 if(Intl_FOUND)
 	target_link_libraries(common-main ${Intl_LIBRARIES})
 endif()
 if(Iconv_FOUND)
 	target_link_libraries(common-main ${Iconv_LIBRARIES})
 endif()
+if(WIN32)
+	target_link_libraries(common-main ws2_32 ntdll ${CMAKE_BINARY_DIR}/git.res)
+	add_dependencies(common-main git-rc)
+	target_link_options(common-main PUBLIC -municode -Wl,--nxcompat -Wl,--dynamicbase -Wl,--pic-executable,-e,mainCRTStartup)
+elseif(UNIX)
+	target_link_libraries(common-main pthread rt)
+endif()
 
 
 set(git_SOURCES
@@ -501,11 +574,13 @@  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)
+if(NOT NO_UNIX_SOCKETS)
+	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)
+	add_executable(git-credential-cache--daemon credential-cache--daemon.c)
+	target_link_libraries(git-credential-cache--daemon common-main)
+endif()
 
 
 set(git_builtin_extra
@@ -517,16 +592,16 @@  set(git_builtin_extra
 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})
+	file(APPEND ${CMAKE_BINARY_DIR}/CreateLinks.cmake "file(CREATE_LINK git${EXE_EXTENSION} git-${s}${EXE_EXTENSION})\n")
+	list(APPEND git_links ${CMAKE_BINARY_DIR}/git-${s}${EXE_EXTENSION})
 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})
+		file(APPEND ${CMAKE_BINARY_DIR}/CreateLinks.cmake "file(CREATE_LINK git-remote-http${EXE_EXTENSION} ${s}${EXE_EXTENSION})\n")
+		list(APPEND git_http_links ${CMAKE_BINARY_DIR}/${s}${EXE_EXTENSION})
 	endforeach()
 endif()
 
@@ -654,20 +729,20 @@  set(bin_links
 	git-receive-pack git-upload-archive git-upload-pack)
 
 foreach(b ${bin_links})
-install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git ${CMAKE_INSTALL_PREFIX}/bin/${b})")
+install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/bin/${b}${EXE_EXTENSION})")
 endforeach()
 
-install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git ${CMAKE_INSTALL_PREFIX}/libexec/git-core/git)")
-install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git-shell ${CMAKE_INSTALL_PREFIX}/libexec/git-core/git-shell)")
+install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/libexec/git-core/git${EXE_EXTENSION})")
+install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git-shell${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/libexec/git-core/git-shell${EXE_EXTENSION})")
 
 foreach(b ${git_links})
 	string(REPLACE "${CMAKE_BINARY_DIR}" "" b ${b})
-	install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git ${CMAKE_INSTALL_PREFIX}/libexec/git-core/${b})")
+	install(CODE "file(CREATE_LINK ${CMAKE_INSTALL_PREFIX}/bin/git${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/libexec/git-core/${b}${EXE_EXTENSION})")
 endforeach()
 
 foreach(b ${git_http_links})
 	string(REPLACE "${CMAKE_BINARY_DIR}" "" b ${b})
-	install(CODE "file(CREATE_LINK  ${CMAKE_INSTALL_PREFIX}/libexec/git-core/git-remote-http ${CMAKE_INSTALL_PREFIX}/libexec/git-core/${b})")
+	install(CODE "file(CREATE_LINK  ${CMAKE_INSTALL_PREFIX}/libexec/git-core/git-remote-http${EXE_EXTENSION} ${CMAKE_INSTALL_PREFIX}/libexec/git-core/${b}${EXE_EXTENSION})")
 endforeach()
 
 install(PROGRAMS ${git_shell_scripts} ${git_perl_scripts} ${CMAKE_BINARY_DIR}/git-p4
@@ -734,14 +809,14 @@  set(wrapper_test_scripts
 foreach(script ${wrapper_scripts})
 	file(STRINGS ${CMAKE_SOURCE_DIR}/wrap-for-bin.sh content NEWLINE_CONSUME)
 	string(REPLACE "@@BUILD_DIR@@" "${CMAKE_BINARY_DIR}" content "${content}")
-	string(REPLACE "@@PROG@@" "${script}" content "${content}")
+	string(REPLACE "@@PROG@@" "${script}${EXE_EXTENSION}" content "${content}")
 	file(WRITE ${CMAKE_BINARY_DIR}/bin-wrappers/${script} ${content})
 endforeach()
 
 foreach(script ${wrapper_test_scripts})
 	file(STRINGS ${CMAKE_SOURCE_DIR}/wrap-for-bin.sh content NEWLINE_CONSUME)
 	string(REPLACE "@@BUILD_DIR@@" "${CMAKE_BINARY_DIR}" content "${content}")
-	string(REPLACE "@@PROG@@" "t/helper/${script}" content "${content}")
+	string(REPLACE "@@PROG@@" "t/helper/${script}${EXE_EXTENSION}" content "${content}")
 	file(WRITE ${CMAKE_BINARY_DIR}/bin-wrappers/${script} ${content})
 endforeach()
 
@@ -807,7 +882,7 @@  file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_PTHREADS='${NO_PTHREADS}'\
 file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_UNIX_SOCKETS='${NO_UNIX_SOCKETS}'\n")
 file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "PAGER_ENV='${PAGER_ENV}'\n")
 file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "DC_SHA1='${DC_SHA1}'\n")
-file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "X=''\n")
+file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "X='${EXE_EXTENSION}'\n")
 file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_GETTEXT='${NO_GETTEXT}'\n")
 file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "RUNTIME_PREFIX='${RUNTIME_PREFIX}'\n")
 file(APPEND ${CMAKE_BINARY_DIR}/GIT-BUILD-OPTIONS "NO_PYTHON='${NO_PYTHON}'\n")