lib/w64devkit
1
0
Fork 0
mirror of https://github.com/skeeto/w64devkit.git synced 2026-10-23 06:08:56 +03:00
Code Activity

crt: __MINGW_IMP_SYMBOL for _strtof_l and _wcstof_l

Browse Source 
These functions are static emulations present in every libmsvcr*.a,
but the headers declare them dllimport (_CRTIMP), so callers reference
__imp__strtof_l and __imp__wcstof_l, which nothing defines, and the
link fails. Define fake import pointers alongside the definitions, as
already done for other statically-emulated functions such as
__acrt_iob_func and _initialize_onexit_table.

The _strtof_l half was merged upstream after v14.0.0 as 373c7dd0
("crt: Add missing __MINGW_IMP_SYMBOL for _strtof_l()"). The
_wcstof_l half is the same fix for the wide variant, which remains
broken upstream.
This commit is contained in:
Christopher Wellons
2026-07-10 20:24:08 -04:00
parent 9aff35afb5
commit 9a11bb6f53
2 changed files with 33 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
Dockerfile
View File

@@ -251,6 +251,9 @@ RUN /dl/binutils/configure \
# https://sourceforge.net/p/mingw-w64/bugs/821/
RUN sed -i /OpenThreadToken/d /dl/mingw/mingw-w64-crt/lib32/kernel32.def
COPY src/mingw-*.patch $PREFIX/src/
RUN cat $PREFIX/src/mingw-*.patch | patch -d/dl/mingw -p1
WORKDIR /x-mingw-headers
RUN printf '#include <crtdefs.h>\n#if __has_include_next(<stddef.h>)\n#include_next <stddef.h>\n#endif\n' \
>/dl/mingw/mingw-w64-headers/crt/stddef.h \

30
src/mingw-imp-strtof_l.patch Normal file
View File

@@ -0,0 +1,30 @@
crt: add missing __MINGW_IMP_SYMBOL for _strtof_l and _wcstof_l
These functions are static emulations present in every libmsvcr*.a,
but the headers declare them dllimport (_CRTIMP), so callers reference
__imp__strtof_l and __imp__wcstof_l, which nothing defines, and the
link fails. Define fake import pointers alongside the definitions, as
already done for other statically-emulated functions such as
__acrt_iob_func and _initialize_onexit_table.
The _strtof_l half was merged upstream after v14.0.0 as 373c7dd0
("crt: Add missing __MINGW_IMP_SYMBOL for _strtof_l()"). The
_wcstof_l half is the same fix for the wide variant, which remains
broken upstream.
--- a/mingw-w64-crt/stdio/_strtof_l.c
+++ b/mingw-w64-crt/stdio/_strtof_l.c
@@ -26,3 +26,5 @@
}
return ret;
}
+
+float (*__MINGW_IMP_SYMBOL(_strtof_l))(const char *, char **, _locale_t) = _strtof_l;
--- a/mingw-w64-crt/stdio/_wcstof_l.c
+++ b/mingw-w64-crt/stdio/_wcstof_l.c
@@ -26,3 +26,5 @@
}
return ret;
}
+
+float (*__MINGW_IMP_SYMBOL(_wcstof_l))(const wchar_t *, wchar_t **, _locale_t) = _wcstof_l;