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-rw-r--r--winsup/mingw/CRT_fp8.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/winsup/mingw/CRT_fp8.c b/winsup/mingw/CRT_fp8.c
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index 000000000..d772d759a
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+++ b/winsup/mingw/CRT_fp8.c
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+/*
+ * CRT_FP8.c
+ *
+ * This forces calls of _fpreset to the MSVCRT function
+ * exported from dll. Effectively it make default
+ * precison same as apps built with MSVC (53-bit mantissa).
+
+ *
+ * To change to 64-bit mantissa, link in CRT_FP10.o before libmingw.a.
+ */
+
+/* Link against the _fpreset visible in import lib */
+
+extern void (*_imp___fpreset)(void) ;
+void _fpreset (void)
+{ (*_imp___fpreset)(); }
+
+void __attribute__ ((alias ("_fpreset"))) fpreset(void);