gdbsupport: replace AC_TRY_COMPILE in common.m4

... with AC_COMPILE_IFELSE + AC_LANG_PROGRAM.  All the changes in the
generated configure files are insignificant whitespace changes.

gdb/ChangeLog:

	* configure: Re-generate.

gdbserver/ChangeLog:

	* configure: Re-generate.

gdbsupport/ChangeLog:

	* common.m4: Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE +
	AC_LANG_PROGRAM.
	* configure: Re-generate.

Change-Id: Id58e6e887f6be817d52b189921845838031dbd2a

7 files changed, 49 insertions, 17 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index d9484b7..e3734cf 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -12,6 +12,10 @@
 
 2020-10-31  Simon Marchi  <simon.marchi@polymtl.ca>
 
+	* configure: Re-generate.
+
+2020-10-31  Simon Marchi  <simon.marchi@polymtl.ca>
+
 	* acinclude.m4: Modernize.
 	* configure: Re-generate.
 
diff --git a/gdb/configure b/gdb/configure
index 801e7a1..a08c8c5 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -14232,13 +14232,14 @@ if ${gdb_cv_func_sigsetjmp+:} false; then :
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-
-  #include <setjmp.h>
-
+#include <setjmp.h>
 int
 main ()
 {
-sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);
+sigjmp_buf env;
+           while (! sigsetjmp (env, 1))
+             siglongjmp (env, 1);
+
   ;
   return 0;
 }
@@ -14247,8 +14248,10 @@ if ac_fn_c_try_compile "$LINENO"; then :
   gdb_cv_func_sigsetjmp=yes
 else
   gdb_cv_func_sigsetjmp=no
+
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_func_sigsetjmp" >&5
 $as_echo "$gdb_cv_func_sigsetjmp" >&6; }
diff --git a/gdbserver/ChangeLog b/gdbserver/ChangeLog
index 5da03da..505ad8e 100644
--- a/gdbserver/ChangeLog
+++ b/gdbserver/ChangeLog
@@ -12,6 +12,10 @@
 
 2020-10-31  Simon Marchi  <simon.marchi@polymtl.ca>
 
+	* configure: Re-generate.
+
+2020-10-31  Simon Marchi  <simon.marchi@polymtl.ca>
+
 	* configure.ac: Modernize.
 	* configure: Re-generate.
 
diff --git a/gdbserver/configure b/gdbserver/configure
index 39ec491..bd48d67 100755
--- a/gdbserver/configure
+++ b/gdbserver/configure
@@ -8029,13 +8029,14 @@ if ${gdb_cv_func_sigsetjmp+:} false; then :
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-
-  #include <setjmp.h>
-
+#include <setjmp.h>
 int
 main ()
 {
-sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);
+sigjmp_buf env;
+           while (! sigsetjmp (env, 1))
+             siglongjmp (env, 1);
+
   ;
   return 0;
 }
@@ -8044,8 +8045,10 @@ if ac_fn_c_try_compile "$LINENO"; then :
   gdb_cv_func_sigsetjmp=yes
 else
   gdb_cv_func_sigsetjmp=no
+
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_func_sigsetjmp" >&5
 $as_echo "$gdb_cv_func_sigsetjmp" >&6; }
diff --git a/gdbsupport/ChangeLog b/gdbsupport/ChangeLog
index 2532a39..3d673d4 100644
--- a/gdbsupport/ChangeLog
+++ b/gdbsupport/ChangeLog
@@ -1,5 +1,11 @@
 2020-10-31  Simon Marchi  <simon.marchi@polymtl.ca>
 
+	* common.m4: Replace AC_TRY_COMPILE with AC_COMPILE_IFELSE +
+	AC_LANG_PROGRAM.
+	* configure: Re-generate.
+
+2020-10-31  Simon Marchi  <simon.marchi@polymtl.ca>
+
 	* common.m4: Replace AC_FUNC_VFORK with AC_FUNC_FORK.
 
 2020-10-31  Simon Marchi  <simon.marchi@polymtl.ca>
diff --git a/gdbsupport/common.m4 b/gdbsupport/common.m4
index c265a9b..4d73938 100644
--- a/gdbsupport/common.m4
+++ b/gdbsupport/common.m4
@@ -127,11 +127,20 @@ AC_DEFUN([GDB_AC_COMMON], [
 
   dnl Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't
   dnl do since sigsetjmp might only be defined as a macro.
-  AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
-  [AC_TRY_COMPILE([
-  #include <setjmp.h>
-  ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
-  gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
+  AC_CACHE_CHECK(
+    [for sigsetjmp],
+    [gdb_cv_func_sigsetjmp],
+    [AC_COMPILE_IFELSE(
+       [AC_LANG_PROGRAM(
+          [#include <setjmp.h>],
+          [sigjmp_buf env;
+           while (! sigsetjmp (env, 1))
+             siglongjmp (env, 1);]
+        )],
+       [gdb_cv_func_sigsetjmp=yes],
+       [gdb_cv_func_sigsetjmp=no]
+     )]
+  )
   if test "$gdb_cv_func_sigsetjmp" = "yes"; then
     AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
   fi
diff --git a/gdbsupport/configure b/gdbsupport/configure
index 1452b35..9c5e59c 100755
--- a/gdbsupport/configure
+++ b/gdbsupport/configure
@@ -9043,13 +9043,14 @@ if ${gdb_cv_func_sigsetjmp+:} false; then :
 else
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
-
-  #include <setjmp.h>
-
+#include <setjmp.h>
 int
 main ()
 {
-sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);
+sigjmp_buf env;
+           while (! sigsetjmp (env, 1))
+             siglongjmp (env, 1);
+
   ;
   return 0;
 }
@@ -9058,8 +9059,10 @@ if ac_fn_c_try_compile "$LINENO"; then :
   gdb_cv_func_sigsetjmp=yes
 else
   gdb_cv_func_sigsetjmp=no
+
 fi
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
 fi
 { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gdb_cv_func_sigsetjmp" >&5
 $as_echo "$gdb_cv_func_sigsetjmp" >&6; }