mingw-w64-crt implements a number of functions that the compiler considers built-in. Currently, we must be cautious about compiler optimizations, as they may not align with our intentions. In theory, the compiler could optimize an implementation of such a function back into a call to itself.
Rather than second-guessing the optimizer and reimplementing problematic functions in assembly, disable built-in functions globally for mingw-w64-crt. --- mingw-w64-crt/Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mingw-w64-crt/Makefile.am b/mingw-w64-crt/Makefile.am index f2f1e6f81..fb882ef94 100644 --- a/mingw-w64-crt/Makefile.am +++ b/mingw-w64-crt/Makefile.am @@ -20,7 +20,7 @@ else endif AM_CPPFLAGS=$(sysincludes) -AM_CFLAGS=-pipe -std=gnu99 -D_CRTBLD -D_WIN32_WINNT=0x0f00 -D__MSVCRT_VERSION__=0x600 -D__USE_MINGW_ANSI_STDIO=0 @IMAGEBASE_CFLAGS@ @CFGUARD_CFLAGS@ @ADD_C_CXX_WARNING_FLAGS@ @ADD_C_ONLY_WARNING_FLAGS@ +AM_CFLAGS=-pipe -std=gnu99 -fno-builtin -D_CRTBLD -D_WIN32_WINNT=0x0f00 -D__MSVCRT_VERSION__=0x600 -D__USE_MINGW_ANSI_STDIO=0 @IMAGEBASE_CFLAGS@ @CFGUARD_CFLAGS@ @ADD_C_CXX_WARNING_FLAGS@ @ADD_C_ONLY_WARNING_FLAGS@ AM_CXXFLAGS=@ADD_C_CXX_WARNING_FLAGS@ @ADD_CXX_ONLY_WARNING_FLAGS@ AM_CCASFLAGS=@CFGUARD_CFLAGS@ CPPFLAGSARM32=-mfpu=vfpv3 -- 2.48.1 _______________________________________________ Mingw-w64-public mailing list Mingw-w64-public@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mingw-w64-public
