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| author | Pali Rohár <pali@kernel.org> | 2023-06-14 18:09:17 +0200 |
|---|---|---|
| committer | Jonathan Yong <10walls@gmail.com> | 2023-06-16 10:16:33 +0000 |
| commit | 453cb585f0f8673a5d69d1b420ffd4b3f53aca00 (patch) | |
| tree | b7583958ee2fb44ebe1141541530dc27b6c11d72 /gcc/doc/invoke.texi | |
| parent | 6586422105eeda80f9129f97024ae46fd9da4bc5 (diff) | |
| download | gcc-453cb585f0f8673a5d69d1b420ffd4b3f53aca00.zip gcc-453cb585f0f8673a5d69d1b420ffd4b3f53aca00.tar.gz gcc-453cb585f0f8673a5d69d1b420ffd4b3f53aca00.tar.bz2 | |
Add MinGW option -mcrtdll= for choosing C RunTime DLL library
It adjust preprocess, compile and link flags, which allows to change
default -lmsvcrt library by another provided by MinGW runtime.
gcc/ChangeLog:
* config/i386/mingw-w64.h (CPP_SPEC): Adjust for -mcrtdll=.
(REAL_LIBGCC_SPEC): New define.
* config/i386/mingw.opt: Add mcrtdll=
* config/i386/mingw32.h (CPP_SPEC): Adjust for -mcrtdll=.
(REAL_LIBGCC_SPEC): Adjust for -mcrtdll=.
(STARTFILE_SPEC): Adjust for -mcrtdll=.
* doc/invoke.texi: Add mcrtdll= documentation.
Signed-off-by: Jonathan Yong <10walls@gmail.com>
Diffstat (limited to 'gcc/doc/invoke.texi')
| -rw-r--r-- | gcc/doc/invoke.texi | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 9ecbd32..19d8c1c 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -1458,7 +1458,7 @@ See RS/6000 and PowerPC Options. -munroll-only-small-loops -mlam=@var{choice}} @emph{x86 Windows Options} -@gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll +@gccoptlist{-mconsole -mcrtdll=@var{library} -mcygwin -mno-cygwin -mdll -mnop-fun-dllimport -mthread -municode -mwin32 -mwindows -fno-set-stack-executable} @@ -34292,6 +34292,28 @@ required for console applications. This option is available for Cygwin and MinGW targets and is enabled by default on those targets. +@opindex mcrtdll +@item -mcrtdll=@var{library} +Preprocess, compile or link with specified C RunTime DLL @var{library}. +This option adjust predefined macros @code{__CRTDLL__}, @code{__MSVCRT__} +and @code{__MSVCRT_VERSION__} for specified CRT @var{library}, choose +start file for CRT @var{library} and link with CRT @var{library}. +Recognized CRT library names for proprocessor are: +@code{crtdll}, @code{msvcrt10}, @code{msvcrt20}, @code{msvcrt40}, +@code{msvcrt-os}, @code{msvcr70}, @code{msvcr80}, @code{msvcr90}, +@code{msvcr100}, @code{msvcr110}, @code{msvcr120} and @code{ucrt}. +If this options is not specified then the default MinGW import library +@code{msvcrt} is used for linking and no other adjustment for +preprocessor is done. MinGW import library @code{msvcrt} is just a +symlink to (or a copy of) another MinGW CRT import library +chosen during MinGW compilation. MinGW import library @code{msvcrt-os} +is for Windows system CRT DLL library @code{msvcrt.dll} and +in most cases is the default MinGW import library. +Generally speaking, changing the CRT DLL requires recompiling +the entire MinGW CRT. This option is for experimental and testing +purposes only. +This option is available for MinGW targets. + @opindex mdll @item -mdll This option is available for Cygwin and MinGW targets. It |