* libU77/configure.in (AC_PROG_CC_WORKS): Define _GNU_SOURCE.

	* libU77/config.hin: Regenerated.
	* libU77/configure: Regenerated.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@62373 138bc75d-0d04-0410-961f-82ee72b054a4

4 files changed, 77 insertions, 61 deletions

diff --git a/libf2c/ChangeLog b/libf2c/ChangeLog
index 6deeadeece4..8769ddd3281 100644
--- a/libf2c/ChangeLog
+++ b/libf2c/ChangeLog
@@ -1,3 +1,9 @@
+2003-02-03  Andreas Jaeger  <aj@suse.de>
+
+	* libU77/configure.in (AC_PROG_CC_WORKS): Define _GNU_SOURCE.
+	* libU77/config.hin: Regenerated.
+	* libU77/configure: Regenerated.
+
 2003-01-27  Alexandre Oliva  <aoliva@redhat.com>
 
 	* Makefile.in ($(LIBG2C)): -rpath is glibcpp_toolexeclibdir.
diff --git a/libf2c/libU77/config.hin b/libf2c/libU77/config.hin
index b0b97719b30..e6d5af240a1 100644
--- a/libf2c/libU77/config.hin
+++ b/libf2c/libU77/config.hin
@@ -1,4 +1,4 @@
-/* config.hin.  Generated automatically from configure.in by autoheader 2.13.  */
+/* config.hin.  Generated automatically from configure.in by autoheader.  */
 
 /* Define to empty if the keyword does not work.  */
 #undef const
@@ -123,3 +123,6 @@
 /* Get 64-bit file size support */
 #undef _FILE_OFFSET_BITS
 
+/* Get GNU extensions */
+#undef _GNU_SOURCE
+
diff --git a/libf2c/libU77/configure b/libf2c/libU77/configure
index 6b288eeb744..d7515b2f04c 100755
--- a/libf2c/libU77/configure
+++ b/libf2c/libU77/configure
@@ -748,6 +748,11 @@ EOF
 #define _FILE_OFFSET_BITS 64
 EOF
 
+  # The following is needed by glibc2 so that gethostname is declared.
+  cat >> confdefs.h <<\EOF
+#define _GNU_SOURCE 1
+EOF
+
 fi
 
 
@@ -763,7 +768,7 @@ fi
 test "$AR" || AR=ar
 
 echo $ac_n "checking whether ${MAKE-make} sets \${MAKE}""... $ac_c" 1>&6
-echo "configure:767: checking whether ${MAKE-make} sets \${MAKE}" >&5
+echo "configure:772: checking whether ${MAKE-make} sets \${MAKE}" >&5
 set dummy ${MAKE-make}; ac_make=`echo "$2" | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_prog_make_${ac_make}_set'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -793,7 +798,7 @@ fi
 # Extract the first word of "chmod", so it can be a program name with args.
 set dummy chmod; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:797: checking for $ac_word" >&5
+echo "configure:802: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_ac_cv_prog_chmod'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -837,7 +842,7 @@ else
 fi
 
 echo $ac_n "checking how to run the C preprocessor""... $ac_c" 1>&6
-echo "configure:841: checking how to run the C preprocessor" >&5
+echo "configure:846: checking how to run the C preprocessor" >&5
 # On Suns, sometimes $CPP names a directory.
 if test -n "$CPP" && test -d "$CPP"; then
   CPP=
@@ -852,13 +857,13 @@ else
   # On the NeXT, cc -E runs the code through the compiler's parser,
   # not just through cpp.
   cat > conftest.$ac_ext <<EOF
-#line 856 "configure"
+#line 861 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:862: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:867: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -869,13 +874,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -E -traditional-cpp"
   cat > conftest.$ac_ext <<EOF
-#line 873 "configure"
+#line 878 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:879: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:884: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -886,13 +891,13 @@ else
   rm -rf conftest*
   CPP="${CC-cc} -nologo -E"
   cat > conftest.$ac_ext <<EOF
-#line 890 "configure"
+#line 895 "configure"
 #include "confdefs.h"
 #include <assert.h>
 Syntax Error
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:896: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:901: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   :
@@ -917,12 +922,12 @@ fi
 echo "$ac_t""$CPP" 1>&6
 
 echo $ac_n "checking for ANSI C header files""... $ac_c" 1>&6
-echo "configure:921: checking for ANSI C header files" >&5
+echo "configure:926: checking for ANSI C header files" >&5
 if eval "test \"`echo '$''{'ac_cv_header_stdc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 926 "configure"
+#line 931 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <stdarg.h>
@@ -930,7 +935,7 @@ else
 #include <float.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:934: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:939: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -947,7 +952,7 @@ rm -f conftest*
 if test $ac_cv_header_stdc = yes; then
   # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 951 "configure"
+#line 956 "configure"
 #include "confdefs.h"
 #include <string.h>
 EOF
@@ -965,7 +970,7 @@ fi
 if test $ac_cv_header_stdc = yes; then
   # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
 cat > conftest.$ac_ext <<EOF
-#line 969 "configure"
+#line 974 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 EOF
@@ -986,7 +991,7 @@ if test "$cross_compiling" = yes; then
   :
 else
   cat > conftest.$ac_ext <<EOF
-#line 990 "configure"
+#line 995 "configure"
 #include "confdefs.h"
 #include <ctype.h>
 #define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
@@ -997,7 +1002,7 @@ if (XOR (islower (i), ISLOWER (i)) || toupper (i) != TOUPPER (i)) exit(2);
 exit (0); }
 
 EOF
-if { (eval echo configure:1001: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1006: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   :
 else
@@ -1021,12 +1026,12 @@ EOF
 fi
 
 echo $ac_n "checking whether time.h and sys/time.h may both be included""... $ac_c" 1>&6
-echo "configure:1025: checking whether time.h and sys/time.h may both be included" >&5
+echo "configure:1030: checking whether time.h and sys/time.h may both be included" >&5
 if eval "test \"`echo '$''{'ac_cv_header_time'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1030 "configure"
+#line 1035 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/time.h>
@@ -1035,7 +1040,7 @@ int main() {
 struct tm *tp;
 ; return 0; }
 EOF
-if { (eval echo configure:1039: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1044: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_header_time=yes
 else
@@ -1060,17 +1065,17 @@ for ac_hdr in limits.h unistd.h sys/time.h string.h stdlib.h \
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:1064: checking for $ac_hdr" >&5
+echo "configure:1069: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1069 "configure"
+#line 1074 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:1074: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:1079: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -1098,12 +1103,12 @@ done
 
 
 echo $ac_n "checking for working const""... $ac_c" 1>&6
-echo "configure:1102: checking for working const" >&5
+echo "configure:1107: checking for working const" >&5
 if eval "test \"`echo '$''{'ac_cv_c_const'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1107 "configure"
+#line 1112 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -1152,7 +1157,7 @@ ccp = (char const *const *) p;
 
 ; return 0; }
 EOF
-if { (eval echo configure:1156: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1161: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_c_const=yes
 else
@@ -1173,12 +1178,12 @@ EOF
 fi
 
 echo $ac_n "checking for size_t""... $ac_c" 1>&6
-echo "configure:1177: checking for size_t" >&5
+echo "configure:1182: checking for size_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_size_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1182 "configure"
+#line 1187 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1206,12 +1211,12 @@ EOF
 fi
 
 echo $ac_n "checking for mode_t""... $ac_c" 1>&6
-echo "configure:1210: checking for mode_t" >&5
+echo "configure:1215: checking for mode_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_mode_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1215 "configure"
+#line 1220 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1240,12 +1245,12 @@ fi
 
 
 echo $ac_n "checking for pid_t""... $ac_c" 1>&6
-echo "configure:1244: checking for pid_t" >&5
+echo "configure:1249: checking for pid_t" >&5
 if eval "test \"`echo '$''{'ac_cv_type_pid_t'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1249 "configure"
+#line 1254 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #if STDC_HEADERS
@@ -1273,12 +1278,12 @@ EOF
 fi
 
 echo $ac_n "checking for st_blksize in struct stat""... $ac_c" 1>&6
-echo "configure:1277: checking for st_blksize in struct stat" >&5
+echo "configure:1282: checking for st_blksize in struct stat" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_st_blksize'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1282 "configure"
+#line 1287 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -1286,7 +1291,7 @@ int main() {
 struct stat s; s.st_blksize;
 ; return 0; }
 EOF
-if { (eval echo configure:1290: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1295: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_st_blksize=yes
 else
@@ -1307,12 +1312,12 @@ EOF
 fi
 
 echo $ac_n "checking for st_blocks in struct stat""... $ac_c" 1>&6
-echo "configure:1311: checking for st_blocks in struct stat" >&5
+echo "configure:1316: checking for st_blocks in struct stat" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_st_blocks'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1316 "configure"
+#line 1321 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -1320,7 +1325,7 @@ int main() {
 struct stat s; s.st_blocks;
 ; return 0; }
 EOF
-if { (eval echo configure:1324: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1329: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_st_blocks=yes
 else
@@ -1343,12 +1348,12 @@ else
 fi
 
 echo $ac_n "checking for st_rdev in struct stat""... $ac_c" 1>&6
-echo "configure:1347: checking for st_rdev in struct stat" >&5
+echo "configure:1352: checking for st_rdev in struct stat" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_st_rdev'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1352 "configure"
+#line 1357 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <sys/stat.h>
@@ -1356,7 +1361,7 @@ int main() {
 struct stat s; s.st_rdev;
 ; return 0; }
 EOF
-if { (eval echo configure:1360: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1365: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_st_rdev=yes
 else
@@ -1377,12 +1382,12 @@ EOF
 fi
 
 echo $ac_n "checking whether struct tm is in sys/time.h or time.h""... $ac_c" 1>&6
-echo "configure:1381: checking whether struct tm is in sys/time.h or time.h" >&5
+echo "configure:1386: checking whether struct tm is in sys/time.h or time.h" >&5
 if eval "test \"`echo '$''{'ac_cv_struct_tm'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1386 "configure"
+#line 1391 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <time.h>
@@ -1390,7 +1395,7 @@ int main() {
 struct tm *tp; tp->tm_sec;
 ; return 0; }
 EOF
-if { (eval echo configure:1394: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1399: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_struct_tm=time.h
 else
@@ -1412,7 +1417,7 @@ fi
 
 
 echo $ac_n "checking for gethostname in -lsocket""... $ac_c" 1>&6
-echo "configure:1416: checking for gethostname in -lsocket" >&5
+echo "configure:1421: checking for gethostname in -lsocket" >&5
 ac_lib_var=`echo socket'_'gethostname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1420,7 +1425,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 1424 "configure"
+#line 1429 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -1431,7 +1436,7 @@ int main() {
 gethostname()
 ; return 0; }
 EOF
-if { (eval echo configure:1435: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1440: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -1457,12 +1462,12 @@ for ac_func in symlink getcwd getwd lstat gethostname strerror clock \
   getrusage times alarm getlogin getgid getuid kill link ttyname
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1461: checking for $ac_func" >&5
+echo "configure:1466: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1466 "configure"
+#line 1471 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1485,7 +1490,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1489: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1494: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -1514,12 +1519,12 @@ done
   for ac_func in gettimeofday
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:1518: checking for $ac_func" >&5
+echo "configure:1523: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1523 "configure"
+#line 1528 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -1542,7 +1547,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:1546: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1551: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -1568,19 +1573,19 @@ done
 
   if test "$ac_cv_func_gettimeofday" = yes; then
     echo $ac_n "checking for struct timezone""... $ac_c" 1>&6
-echo "configure:1572: checking for struct timezone" >&5
+echo "configure:1577: checking for struct timezone" >&5
 if eval "test \"`echo '$''{'g77_cv_struct_timezone'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1577 "configure"
+#line 1582 "configure"
 #include "confdefs.h"
 #include <sys/time.h>
 int main() {
 struct timezone tz;
 ; return 0; }
 EOF
-if { (eval echo configure:1584: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:1589: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   g77_cv_struct_timezone=yes
 else
@@ -1601,7 +1606,7 @@ EOF
 
 else
   cat > conftest.$ac_ext <<EOF
-#line 1605 "configure"
+#line 1610 "configure"
 #include "confdefs.h"
 
 #ifdef TIME_WITH_SYS_TIME
@@ -1624,7 +1629,7 @@ main ()
     exit (0);
 }
 EOF
-if { (eval echo configure:1628: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:1633: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   cat >> confdefs.h <<\EOF
 #define HAVE_TIMEZONE 1
@@ -1640,12 +1645,12 @@ fi
     fi
     
     echo $ac_n "checking whether gettimeofday can accept two arguments""... $ac_c" 1>&6
-echo "configure:1644: checking whether gettimeofday can accept two arguments" >&5
+echo "configure:1649: checking whether gettimeofday can accept two arguments" >&5
 if eval "test \"`echo '$''{'emacs_cv_gettimeofday_two_arguments'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 1649 "configure"
+#line 1654 "configure"
 #include "confdefs.h"
 
 #ifdef TIME_WITH_SYS_TIME
@@ -1671,7 +1676,7 @@ int main() {
       gettimeofday (&time, DUMMY);
 ; return 0; }
 EOF
-if { (eval echo configure:1675: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:1680: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   emacs_cv_gettimeofday_two_arguments=yes
 else
diff --git a/libf2c/libU77/configure.in b/libf2c/libU77/configure.in
index b0e0aed6bf0..2ca5173f9a7 100644
--- a/libf2c/libU77/configure.in
+++ b/libf2c/libU77/configure.in
@@ -47,6 +47,8 @@ if test $may_use_xopen_source = yes; then
   # The following is needed by Solaris2.5.1 so that struct timeval is declared.
   AC_DEFINE(__EXTENSIONS__, 1, [Solaris extensions])
   AC_DEFINE(_FILE_OFFSET_BITS, 64, [Get 64-bit file size support])
+  # The following is needed by glibc2 so that gethostname is declared.
+  AC_DEFINE(_GNU_SOURCE, 1, [Get GNU extensions])
 fi
 
 dnl Checks for programs.