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-rw-r--r--lib/make/known-architectures/cygwin4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/make/known-architectures/cygwin b/lib/make/known-architectures/cygwin
index bf9e1e2b..3d935f9c 100644
--- a/lib/make/known-architectures/cygwin
+++ b/lib/make/known-architectures/cygwin
@@ -101,8 +101,8 @@ else
GET_WD="pwd | sed 's,^/cygdrive/\(.\)/,\1:/,' | sed 's,^//\(.\)/,\1:/,' | sed 's,/,\\\\\\,g' "
# The -nostdinc stops it picking stdio.h, etc, from the GNU headers.
- C_DEPEND='$(CPP) -E -MM -nostdinc $(CPPFLAGS) '
- CXX_DEPEND='$(CPP) -E -MM -nostdinc $(CPPFLAGS) '
+ C_DEPEND='$(CPP) -E -MM -nostdinc -D_WIN32 $(CPPFLAGS) '
+ CXX_DEPEND='$(CPP) -E -MM -nostdinc -D_WIN32 $(CPPFLAGS) '
# Add in system include dirs from $(INCLUDE). These may contain spaces.
# The -D_M_IX86 is necessary for things like winnt.h. Since this is