Merge branch 'master' of github.com:jca02266/lha

[lha/lha.git] / src / cproto.sh

diff --git a/src/cproto.sh b/src/cproto.sh
index 169ebef..6213989 100644 (file)
--- a/src/cproto.sh
+++ b/src/cproto.sh
@@ -1,44 +1,76 @@
 #!/bin/sh
+#
+# generate function prototypes `prototype.h'.
+#
 
-exec > prototypes.h
+trap "rm -f prototypes.h.tmp prototypes.h.bak" 0 1 2 3 15
+
+CPROTO_FLAGS=
+CPPFLAGS='-DSTDC_HEADERS=1
+       -DHAVE_STRDUP=1
+       -DHAVE_MEMSET=1
+       -DHAVE_MEMMOVE=1
+       -DHAVE_STRCASECMP=1
+       -DHAVE_BASENAME=1
+       -DMULTIBYTE_FILENAME=1
+       -Dinterrupt=dummy__
+       -DNEED_INCREMENTAL_INDICATOR=1
+'
+# `interrupt' is the reserved word for cproto.
+
+SOURCES='append.c bitio.c crcio.c dhuf.c extract.c header.c
+       huf.c indicator.c larc.c lhadd.c lharc.c lhext.c
+       lhlist.c maketbl.c maketree.c patmatch.c
+       shuf.c slide.c util.c
+       pm2.c pm2tree.c pm2hist.c
+'
+
+test -f prototypes.h && mv -f prototypes.h prototypes.h.bak
+
+# below makes cproto regard `RETSIGTYPE' as the variable type.
+cat <<END >prototypes.h
+typedef void RETSIGTYPE;
+END
+
+exec 5>&1 > prototypes.h.tmp
 
 cat <<END
 /* This file was generated by cproto. */
-#if PROTOTYPES /* defined in config.h */
-#define P_(s) s
-#else
-#define P_(s) ()
-#endif
 
 END
 
-cproto -m -d \
-       -D STDC_HEADERS=1 -D HAVE_STRDUP=0 -D HAVE_MEMSET=0 -D HAVE_MEMMOVE=0 \
-       append.c crcio.c dhuf.c extract.c header.c \
-       huf.c larc.c lhadd.c lharc.c lhext.c \
-       lhlist.c maketbl.c maketree.c patmatch.c \
-       shuf.c slide.c util.c
+cproto $CPROTO_FLAGS $CPPFLAGS $SOURCES |
+       sed -e '/^int main /d' -e 's/dummy__/interrupt/'
 
 cat <<END
 
-/* lharc.c */
-RETSIGTYPE interrupt(int signo);
 /* util.c */
 #if !HAVE_MEMMOVE
-void *memmove P_(void *dst, const void *src, size_t cnt)
+void *memmove(void *dst, const void *src, size_t cnt);
 #endif
 #if !HAVE_STRDUP
-char *strdup P_((char *buf));
+char *strdup(const char *buf);
 #endif
 #if !HAVE_MEMSET
-char *memset P_((char *s, int c, int n));
+char *memset(char *s, int c, size_t n);
+#endif
+#if !HAVE_STRCASECMP
+int strcasecmp(const char *p1, const char *p2);
+#endif
+#if defined HAVE_DECL_BASENAME && !HAVE_DECL_BASENAME
+char *basename(char *s);
 #endif
 
 /* vsnprintf.c */
 #if !HAVE_VSNPRINTF
-int vsnprintf P_((char *str, size_t n, const char *fmt, va_list ap));
-int snprintf P_((char *str, size_t n, char const *fmt, ...));
+int vsnprintf(char *str, size_t n, const char *fmt, va_list ap);
+int snprintf(char *str, size_t n, char const *fmt, ...);
 #endif
-
-#undef P_
 END
+
+exec 1>&5
+if test -f prototypes.h.bak && cmp -s prototypes.h.tmp prototypes.h.bak; then
+  mv -f prototypes.h.bak prototypes.h
+else
+  mv -f prototypes.h.tmp prototypes.h
+fi