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| author | wtc%netscape.com <devnull@localhost> | 2003-06-06 03:10:18 +0000 |
|---|---|---|
| committer | wtc%netscape.com <devnull@localhost> | 2003-06-06 03:10:18 +0000 |
| commit | 858074eb6d651b40ee7bbd93d1b24045e36e692e (patch) | |
| tree | 3eafd7d45cd47673a34e405d7119f7e8964f7097 | |
| parent | 8114e7909e6f7d617d9193413380182636feb8ea (diff) | |
| download | nspr-hg-858074eb6d651b40ee7bbd93d1b24045e36e692e.tar.gz | |
Bug 207421: use /Op to disable some floating-point optimizations of MSVC
6.0 Processor Pack because they make the floating-point calculations in
prdtoa.c produce incorrect results. r=cls.
| -rw-r--r-- | pr/src/misc/Makefile.in | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/pr/src/misc/Makefile.in b/pr/src/misc/Makefile.in index 5949d507..afc4b631 100644 --- a/pr/src/misc/Makefile.in +++ b/pr/src/misc/Makefile.in @@ -82,6 +82,16 @@ RELEASE_BINS = $(srcdir)/compile-et.pl $(srcdir)/prerr.properties include $(topsrcdir)/config/rules.mk +# Prevent floating point errors caused by MSVC 6.0 Processor Pack +# optimizations (bug 207421). This disables optimizations that +# could change the precision of floating-point calculations for +# this single compilation unit. +ifeq ($(NS_USE_GCC)_$(OS_ARCH),_WINNT) +$(OBJDIR)/prdtoa.$(OBJ_SUFFIX): prdtoa.c + @$(MAKE_OBJDIR) + $(CC) -Fo$@ -c $(CFLAGS) -Op $(call abspath,$<) +endif + # # Generate prerr.h, prerr.c, and prerr.properties from prerr.et. # |