From: wessels <>
Date: Thu, 14 Nov 1996 05:11:04 +0000 (+0000)
Subject: add AC_C_CONST
X-Git-Tag: SQUID_3_0_PRE1~5472
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=aee0606f3ade2b3e9821b4335664ec62eabecff6;p=thirdparty%2Fsquid.git

add AC_C_CONST
---

diff --git a/configure b/configure
index 335d9f8946..5e163d877e 100755
--- a/configure
+++ b/configure
@@ -517,7 +517,7 @@ fi
 
 
 
-# From configure.in Revision: 1.45 
+# From configure.in Revision: 1.46 
 ac_aux_dir=
 for ac_dir in aux $srcdir/aux; do
   if test -f $ac_dir/install-sh; then
@@ -1449,9 +1449,84 @@ fi
 done
 
 
+echo $ac_n "checking for working const""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1458 "configure"
+#include "confdefs.h"
+
+int main() { return 0; }
+int t() {
+
+/* Ultrix mips cc rejects this.  */
+typedef int charset[2]; const charset x;
+/* SunOS 4.1.1 cc rejects this.  */
+char const *const *ccp;
+char **p;
+/* NEC SVR4.0.2 mips cc rejects this.  */
+struct point {int x, y;};
+static struct point const zero = {0,0};
+/* AIX XL C 1.02.0.0 rejects this.
+   It does not let you subtract one const X* pointer from another in an arm
+   of an if-expression whose if-part is not a constant expression */
+const char *g = "string";
+ccp = &g + (g ? g-g : 0);
+/* HPUX 7.0 cc rejects these. */
+++ccp;
+p = (char**) ccp;
+ccp = (char const *const *) p;
+{ /* SCO 3.2v4 cc rejects this.  */
+  char *t;
+  char const *s = 0 ? (char *) 0 : (char const *) 0;
+
+  *t++ = 0;
+}
+{ /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
+  int x[] = {25, 17};
+  const int *foo = &x[0];
+  ++foo;
+}
+{ /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
+  typedef const int *iptr;
+  iptr p = 0;
+  ++p;
+}
+{ /* AIX XL C 1.02.0.0 rejects this saying
+     "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
+  struct s { int j; const int *ap[3]; };
+  struct s *b; b->j = 5;
+}
+{ /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
+  const int foo = 10;
+}
+
+; return 0; }
+EOF
+if eval $ac_compile; then
+  rm -rf conftest*
+  ac_cv_c_const=yes
+else
+  rm -rf conftest*
+  ac_cv_c_const=no
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$ac_cv_c_const" 1>&6
+if test $ac_cv_c_const = no; then
+  cat >> confdefs.h <<\EOF
+#define const 
+EOF
+
+fi
+
+
 echo $ac_n "checking for tm->tm_gmtoff""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 1455 "configure"
+#line 1530 "configure"
 #include "confdefs.h"
 #include <time.h>
 #include <sys/time.h>
@@ -1477,7 +1552,7 @@ rm -f conftest*
 
 echo $ac_n "checking for extended mallinfo""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 1481 "configure"
+#line 1556 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <malloc.h>
@@ -1503,7 +1578,7 @@ rm -f conftest*
 
 echo $ac_n "checking for ip->ip_hl""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 1507 "configure"
+#line 1582 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <netinet/in.h>
@@ -1537,7 +1612,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
 cat > conftest.$ac_ext <<EOF
-#line 1541 "configure"
+#line 1616 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -1571,7 +1646,7 @@ else
     { echo "configure: error: can not run test program while cross compiling" 1>&2; exit 1; }
 else
 cat > conftest.$ac_ext <<EOF
-#line 1575 "configure"
+#line 1650 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 main()
@@ -1605,7 +1680,7 @@ if eval "test \"`echo '$''{'ac_cv_header_alloca_h'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1609 "configure"
+#line 1684 "configure"
 #include "confdefs.h"
 #include <alloca.h>
 int main() { return 0; }
@@ -1637,7 +1712,7 @@ if eval "test \"`echo '$''{'ac_cv_func_alloca'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1641 "configure"
+#line 1716 "configure"
 #include "confdefs.h"
 
 #ifdef __GNUC__
@@ -1696,7 +1771,7 @@ if eval "test \"`echo '$''{'ac_cv_os_cray'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1700 "configure"
+#line 1775 "configure"
 #include "confdefs.h"
 #if defined(CRAY) && ! defined(CRAY2)
 webecray
@@ -1725,7 +1800,7 @@ if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1729 "configure"
+#line 1804 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1779,7 +1854,7 @@ else
   ac_cv_c_stack_direction=0
 else
 cat > conftest.$ac_ext <<EOF
-#line 1783 "configure"
+#line 1858 "configure"
 #include "confdefs.h"
 find_stack_direction ()
 {
@@ -1821,7 +1896,7 @@ if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1825 "configure"
+#line 1900 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1852,7 +1927,7 @@ if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1856 "configure"
+#line 1931 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1883,7 +1958,7 @@ if eval "test \"`echo '$''{'ac_cv_type_off_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1887 "configure"
+#line 1962 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1918,7 +1993,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1922 "configure"
+#line 1997 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -1958,7 +2033,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1962 "configure"
+#line 2037 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -1998,7 +2073,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lmalloc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2002 "configure"
+#line 2077 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2032,7 +2107,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lresolv  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2036 "configure"
+#line 2111 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2072,7 +2147,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lbsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2076 "configure"
+#line 2151 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2113,7 +2188,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-l44bsd  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2117 "configure"
+#line 2192 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2147,7 +2222,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lresolv  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2151 "configure"
+#line 2226 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2182,7 +2257,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lcrypt  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2186 "configure"
+#line 2261 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2218,7 +2293,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lshadow  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2222 "configure"
+#line 2297 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2260,7 +2335,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-labi  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2264 "configure"
+#line 2339 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2294,7 +2369,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lposix4  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2298 "configure"
+#line 2373 "configure"
 #include "confdefs.h"
 
 int main() { return 0; }
@@ -2415,7 +2490,7 @@ if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2419 "configure"
+#line 2494 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2469,7 +2544,7 @@ if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2473 "configure"
+#line 2548 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -2517,7 +2592,7 @@ if test "$cross_compiling" = yes; then
   SQUID_FD_SETSIZE=256
 else
 cat > conftest.$ac_ext <<EOF
-#line 2521 "configure"
+#line 2596 "configure"
 #include "confdefs.h"
 
 #include <unistd.h>
@@ -2587,7 +2662,7 @@ if test "$cross_compiling" = yes; then
   SQUID_UDP_SO_SNDBUF=16384
 else
 cat > conftest.$ac_ext <<EOF
-#line 2591 "configure"
+#line 2666 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2623,7 +2698,7 @@ if test "$cross_compiling" = yes; then
   SQUID_UDP_SO_RCVBUF=16384
 else
 cat > conftest.$ac_ext <<EOF
-#line 2627 "configure"
+#line 2702 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2659,7 +2734,7 @@ if test "$cross_compiling" = yes; then
   SQUID_TCP_SO_SNDBUF=16384
 else
 cat > conftest.$ac_ext <<EOF
-#line 2663 "configure"
+#line 2738 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2695,7 +2770,7 @@ if test "$cross_compiling" = yes; then
   SQUID_TCP_SO_RCVBUF=16384
 else
 cat > conftest.$ac_ext <<EOF
-#line 2699 "configure"
+#line 2774 "configure"
 #include "confdefs.h"
 
 #include <sys/types.h>
@@ -2728,7 +2803,7 @@ EOF
 
 echo $ac_n "checking if sys_errlist is already defined""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 2732 "configure"
+#line 2807 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 int main() { return 0; }
@@ -2752,7 +2827,7 @@ rm -f conftest*
 
 echo $ac_n "checking for libresolv _dns_ttl_ hack""... $ac_c" 1>&6
 cat > conftest.$ac_ext <<EOF
-#line 2756 "configure"
+#line 2831 "configure"
 #include "confdefs.h"
 extern int _dns_ttl_;
 int main() { return 0; }
diff --git a/configure.in b/configure.in
index caa6ccb147..9fe24da080 100644
--- a/configure.in
+++ b/configure.in
@@ -3,13 +3,13 @@ dnl  Configuration input file for Squid
 dnl
 dnl  Duane Wessels, wessels@nlanr.net, February 1996 (autoconf v2.9)
 dnl
-dnl  $Id: configure.in,v 1.46 1996/11/13 18:11:25 wessels Exp $
+dnl  $Id: configure.in,v 1.47 1996/11/13 22:11:04 wessels Exp $
 dnl
 dnl
 dnl
 AC_INIT(src/main.c)
 AC_CONFIG_HEADER(include/autoconf.h)
-AC_REVISION($Revision: 1.46 $)dnl
+AC_REVISION($Revision: 1.47 $)dnl
 AC_PREFIX_DEFAULT(/usr/local/squid)
 AC_CONFIG_AUX_DIR(aux)
 
@@ -169,6 +169,8 @@ AC_CHECK_HEADERS( \
 	varargs.h \
 )
 
+AC_C_CONST
+
 AC_MSG_CHECKING(for tm->tm_gmtoff)
 AC_TRY_COMPILE([#include <time.h>
 #include <sys/time.h>],
diff --git a/include/autoconf.h.in b/include/autoconf.h.in
index 63ac4c51bc..1abbde1cea 100644
--- a/include/autoconf.h.in
+++ b/include/autoconf.h.in
@@ -3,6 +3,9 @@
 /* Define if using alloca.c.  */
 #undef C_ALLOCA
 
+/* Define to empty if the keyword does not work.  */
+#undef const
+
 /* Define to one of _getb67, GETB67, getb67 for Cray-2 and Cray-YMP systems.
    This function is required for alloca.c support on those systems.  */
 #undef CRAY_STACKSEG_END