* Build on HP-UX systems: disable unsupported warning flags, define

_XOPEN_SOURCE_EXTENDED where appropriate, use AC_C_INLINE to avoid using
    the inline keyword when unsupported, and use #pragma INIT for library
    initialisation routines.

Makefile.am

@@ -3,6 +3,7 @@
 SUBDIRS = src test doc
 DIST_SUBDIRS = $(SUBDIRS)
 
-EXTRA_DIST = bootstrap AUTHORS
+EXTRA_DIST = bootstrap AUTHORS m4/cflags.m4
+ACLOCAL_AMFLAGS = -I m4
 AUTOMAKE_OPTIONS = foreign dist-bzip2
 

configure.ac

@@ -11,6 +11,15 @@ AM_PROG_CC_C_O
 AC_PROG_CPP
 AC_PROG_LIBTOOL
 
+AC_C_INLINE
+
+# Optimizations
+AC_TRY_CFLAGS(-g -O2, CFLAGS="${CFLAGS} -g -O2")
+# Code qui fait des warnings == code de porc == deux baffes dans ta gueule
+AC_TRY_CFLAGS(-Wall, CFLAGS="${CFLAGS} -Wall")
+AC_TRY_CFLAGS(-W, CFLAGS="${CFLAGS} -W")
+AC_TRY_CFLAGS(-Wpointer-arith -Wcast-align -Wcast-qual -Wstrict-prototypes -Wshadow -Waggregate-return -Wmissing-prototypes -Wnested-externs -Wsign-compare, CFLAGS="${CFLAGS} -Wpointer-arith -Wcast-align -Wcast-qual -Wstrict-prototypes -Wshadow -Waggregate-return -Wmissing-prototypes -Wnested-externs -Wsign-compare")
+
 case "${host_os}" in
   *mingw32*)
     DLL_LDFLAGS="-Wl,-l,imagehlp" # Trick libtool here
@@ -49,13 +58,22 @@ AC_TRY_COMPILE([#include <unistd.h>],
 
 AC_MSG_CHECKING(for recv() return value)
 ac_v_recv_t="int"
-AC_TRY_COMPILE([#include <sys/types.h>
-  #include <sys/socket.h>],
+AC_TRY_COMPILE([#define _XOPEN_SOURCE_EXTENDED
+                #include <sys/types.h>
+                #include <sys/socket.h>],
  [ssize_t recv(int s, void *buf, size_t len, int flags);],
  [ac_v_recv_t="ssize_t"])
 AC_MSG_RESULT($ac_v_recv_t)
 AC_DEFINE_UNQUOTED(RECV_T, $ac_v_recv_t, [Define to the recv() return type])
 
+AC_MSG_CHECKING(for pragma INIT/FINI)
+AC_TRY_COMPILE([],
+ [#pragma INIT "my_init"
+  void my_init(void)],
+ [AC_MSG_RESULT(yes)
+  AC_DEFINE(HAVE_PRAGMA_INIT, 1, [Define to 1 if you have pragma INIT])],
+ [AC_MSG_RESULT(no)])
+
 ac_cv_have_getopt_long="no"
 AC_CHECK_FUNCS(getopt_long,
  [ac_cv_have_getopt_long="yes"],
@@ -73,11 +91,6 @@ AC_SUBST(MATH_LIBS)
 AC_CHECK_LIB(dl, dlopen, [DL_LIBS="-ldl"])
 AC_SUBST(DL_LIBS)
 
-# Optimizations
-CFLAGS="${CFLAGS} -g -O2"
-# Code qui fait des warnings == code de porc == deux baffes dans ta gueule
-CFLAGS="${CFLAGS} -Wall -W -Wpointer-arith -Wcast-align -Wcast-qual -Wstrict-prototypes -Wshadow -Waggregate-return -Wmissing-prototypes -Wnested-externs -Wsign-compare"
-
 AC_OUTPUT([
   Makefile
   src/Makefile

m4/cflags.m4

@@ -0,0 +1,14 @@
+dnl AC_TRY_CFLAGS (CFLAGS, [ACTION-IF-WORKS], [ACTION-IF-FAILS])
+dnl check if $CC supports a given set of cflags
+AC_DEFUN([AC_TRY_CFLAGS],
+    [AC_MSG_CHECKING([if $CC supports $1 flags])
+    SAVE_CFLAGS="$CFLAGS"
+    CFLAGS="$1"
+    AC_TRY_COMPILE([],[],[ac_cv_try_cflags_ok=yes],[ac_cv_try_cflags_ok=no])
+    CFLAGS="$SAVE_CFLAGS"
+    AC_MSG_RESULT([$ac_cv_try_cflags_ok])
+    if test x"$ac_cv_try_cflags_ok" = x"yes"; then
+        ifelse([$2],[],[:],[$2])
+    else
+        ifelse([$3],[],[:],[$3])
+    fi])

src/lib-fd.c

@@ -25,6 +25,8 @@
 #define _GNU_SOURCE
 /* Use this to get lseek64() on glibc systems */
 #define _LARGEFILE64_SOURCE
+/* Use this to get proper prototypes on HP-UX systems */
+#define _XOPEN_SOURCE_EXTENDED
 
 #if defined HAVE_STDINT_H
 #   include <stdint.h>

src/libzzuf.c

@@ -48,8 +48,14 @@
 #include "fuzz.h"
 
 /* Library initialisation shit */
+#if defined __GNUC__
 void _zz_init(void) __attribute__((constructor));
 void _zz_fini(void) __attribute__((destructor));
+#elif defined HAVE_PRAGMA_INIT
+#   pragma INIT "_zz_init"
+#   pragma FINI "_zz_fini"
+#endif
+
 #if defined HAVE_WINDOWS_H
 BOOL WINAPI DllMain(HINSTANCE, DWORD, PVOID);
 #endif