LynxOS 4.0.0 doesn't declare vfprintf.

* configure.ac: Check for vfprintf.
* configure: Regenerated.
* src/include/lib.h: Handle `NEED_DECLARATION_VFPRINTF'.
* src/include/config.hin: Regenerated.

6 files changed, 134 insertions, 21 deletions

diff --git a/ChangeLog b/ChangeLog
index 07c5bdcd..5ad3569f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,8 +1,18 @@
+2003-11-11  Werner LEMBERG  <wl@gnu.org>
+
+	LynxOS 4.0.0 doesn't declare vfprintf.
+
+	* configure.ac: Check for vfprintf.
+	* configure: Regenerated.
+	* src/include/lib.h: Handle `NEED_DECLARATION_VFPRINTF'.
+	* src/include/config.hin: Regenerated.
+
 2003-11-10  Werner LEMBERG  <wl@gnu.org>
 
 	LynxOS 4.0.0 has snprintf (without declaration) but no vsnprintf.
 
 	* configure.ac: Check for vsnprintf.
+	* configure: Regenerated.
 	* src/include/lib.h: Handle `NEED_DECLARATION_VSNPRINTF' and
 	`HAVE_VSNPRINTF'.
 	* src/include/config.hin: Regenerated.
diff --git a/Makefile.in b/Makefile.in
index cf5bfdef..57c891d2 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -265,6 +265,8 @@ make_install_html=@make_install_html@
 # -DNEED_DECLARATION_STRNCASECMP
 #				if your C++ <string.h> doesn't declare
 #				strncasecmp()
+# -DNEED_DECLARATION_VFPRINTF	if your C++ <stdio.h> doesn't declare
+#				vfprintf()
 # -DNEED_DECLARATION_VSNPRINTF	if your C++ <stdio.h> doesn't declare
 #				vsnprintf()
 #
diff --git a/configure b/configure
index acf42347..76f51d78 100755
--- a/configure
+++ b/configure
@@ -5207,6 +5207,109 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+echo "$as_me:$LINENO: checking whether vfprintf must be declared" >&5
+echo $ECHO_N "checking whether vfprintf must be declared... $ECHO_C" >&6
+   ac_ext=cc
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+   if test "${groff_cv_decl_needed_vfprintf+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+
+          /* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+
+#include <stdio.h>
+#ifdef HAVE_STRING_H
+#include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+#include <strings.h>
+#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+#ifdef HAVE_SYS_TIME_H
+#include <sys/time.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_MATH_H
+#include <math.h>
+#endif
+
+
+int
+main ()
+{
+
+
+#ifndef vfprintf
+  char *p = (char *) vfprintf;
+#endif
+
+
+  ;
+  return 0;
+}
+
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_cxx_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  groff_cv_decl_needed_vfprintf=no
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+groff_cv_decl_needed_vfprintf=yes
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+
+   echo "$as_me:$LINENO: result: $groff_cv_decl_needed_vfprintf" >&5
+echo "${ECHO_T}$groff_cv_decl_needed_vfprintf" >&6
+   if test $groff_cv_decl_needed_vfprintf = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define NEED_DECLARATION_VFPRINTF 1
+_ACEOF
+
+   fi
+   ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
 echo "$as_me:$LINENO: checking whether vsnprintf must be declared" >&5
 echo $ECHO_N "checking whether vsnprintf must be declared... $ECHO_C" >&6
    ac_ext=cc
diff --git a/configure.ac b/configure.ac
index 4ddbe7f9..0fda78cc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -42,6 +42,7 @@ GROFF_NEED_DECLARATION([snprintf])
 GROFF_NEED_DECLARATION([srand])
 GROFF_NEED_DECLARATION([strcasecmp])
 GROFF_NEED_DECLARATION([strncasecmp])
+GROFF_NEED_DECLARATION([vfprintf])
 GROFF_NEED_DECLARATION([vsnprintf])
 GROFF_SYS_NERR
 GROFF_SYS_ERRLIST
diff --git a/src/include/config.hin b/src/include/config.hin
index 97797801..dff8af90 100644
--- a/src/include/config.hin
+++ b/src/include/config.hin
@@ -157,6 +157,9 @@
 /* Define if your C++ doesn't declare strncasecmp(). */
 #undef NEED_DECLARATION_STRNCASECMP
 
+/* Define if your C++ doesn't declare vfprintf(). */
+#undef NEED_DECLARATION_VFPRINTF
+
 /* Define if your C++ doesn't declare vsnprintf(). */
 #undef NEED_DECLARATION_VSNPRINTF
 
diff --git a/src/include/lib.h b/src/include/lib.h
index ba590e46..fd7d6fec 100644
--- a/src/include/lib.h
+++ b/src/include/lib.h
@@ -60,19 +60,21 @@ int is_prime(unsigned);
 #include <strings.h>
 #endif
 
+#include <stdarg.h>
+
 /* HP-UX 10.20 and LynxOS 4.0.0 don't declare snprintf() */
 #if !defined(HAVE_SNPRINTF) || defined(NEED_DECLARATION_SNPRINTF)
-extern "C" {
-  int snprintf(char *, size_t, const char *, /*args*/ ...);
-}
+extern "C" { int snprintf(char *, size_t, const char *, /*args*/ ...); }
 #endif
 
 /* LynxOS 4.0.0 has snprintf() but no vsnprintf() */
 #if !defined(HAVE_VSNPRINTF) || defined(NEED_DECLARATION_VSNPRINTF)
-#include <stdarg.h>
-extern "C" {
-  int vsnprintf(char *, size_t, const char *, va_list);
-}
+extern "C" { int vsnprintf(char *, size_t, const char *, va_list); }
+#endif
+
+/* LynxOS 4.0.0 doesn't declare vfprintf() */
+#ifdef NEED_DECLARATION_VFPRINTF
+extern "C" { int vfprintf(FILE *, const char *, va_list); }
 #endif
 
 #ifndef HAVE_MKSTEMP
@@ -109,29 +111,21 @@ inline int invalid_input_char(int c)
 
 #ifdef HAVE_STRCASECMP
 #ifdef NEED_DECLARATION_STRCASECMP
-extern "C" {
-  // Ultrix4.3's string.h fails to declare this.
-  int strcasecmp(const char *, const char *);
-}
+// Ultrix4.3's string.h fails to declare this.
+extern "C" { int strcasecmp(const char *, const char *); }
 #endif /* NEED_DECLARATION_STRCASECMP */
 #else /* not HAVE_STRCASECMP */
-extern "C" {
-  int strcasecmp(const char *, const char *);
-}
+extern "C" { int strcasecmp(const char *, const char *); }
 #endif /* HAVE_STRCASECMP */
 
 #if !defined(_AIX) && !defined(sinix) && !defined(__sinix__)
 #ifdef HAVE_STRNCASECMP
 #ifdef NEED_DECLARATION_STRNCASECMP
-extern "C" {
-  // SunOS's string.h fails to declare this.
-  int strncasecmp(const char *, const char *, int);
-}
+// SunOS's string.h fails to declare this.
+extern "C" { int strncasecmp(const char *, const char *, int); }
 #endif /* NEED_DECLARATION_STRNCASECMP */
 #else /* not HAVE_STRNCASECMP */
-extern "C" {
-  int strncasecmp(const char *, const char *, size_t);
-}
+extern "C" { int strncasecmp(const char *, const char *, size_t); }
 #endif /* HAVE_STRNCASECMP */
 #endif /* !_AIX && !sinix && !__sinix__ */