Fix regex compilation error on HP-UX 11.

[gnulib.git] / modules / stdarg

diff --git a/modules/stdarg b/modules/stdarg
index 01acff8..f0b630f 100644 (file)
--- a/modules/stdarg
+++ b/modules/stdarg
@@ -2,14 +2,36 @@ Description:
 An <stdarg.h> that conforms to C99.
 
 Files:
+lib/stdarg.in.h
 m4/stdarg.m4
 
 Depends-on:
+include_next
+
+configure.ac-early:
+dnl Some compilers (e.g., AIX 5.3 cc) need to be in c99 mode
+dnl for the builtin va_copy to work.  With Autoconf 2.60 or later,
+dnl AC_PROG_CC_STDC arranges for this.  With older Autoconf AC_PROG_CC_STDC
+dnl shouldn't hurt, though installers are on their own to set c99 mode.
+AC_REQUIRE([AC_PROG_CC_STDC])
 
 configure.ac:
 gl_STDARG_H
 
 Makefile.am:
+BUILT_SOURCES += $(STDARG_H)
+
+# We need the following in order to create <stdarg.h> when the system
+# doesn't have one that works with the given compiler.
+stdarg.h: stdarg.in.h
+       rm -f $@-t $@
+       { echo '/* DO NOT EDIT! GENERATED AUTOMATICALLY! */' && \
+         sed -e 's/@''INCLUDE_NEXT''@/$(INCLUDE_NEXT)/g' \
+             -e 's|@''NEXT_STDARG_H''@|$(NEXT_STDARG_H)|g' \
+             < $(srcdir)/stdarg.in.h; \
+       } > $@-t
+       mv $@-t $@
+MOSTLYCLEANFILES += stdarg.h stdarg.h-t
 
 Include:
 #include <stdarg.h>