[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
C99 compatibility fixes for the plotutils configure script
From: |
Florian Weimer |
Subject: |
C99 compatibility fixes for the plotutils configure script |
Date: |
Wed, 18 Jan 2023 13:13:55 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/28.2 (gnu/linux) |
Future C compilers will only support calling functions which are
declared. The attached patch is required to avoid changing the outcome
of configure checks with such compilers.
Related to:
<https://fedoraproject.org/wiki/Changes/PortingToModernC>
<https://fedoraproject.org/wiki/Toolchain/PortingToModernC>
Thanks,
Florian
Do not call the undeclared exit function. This avoids build problems
with future compilers which do not support implicit function
declarations.
diff --git a/configure b/configure
index 229ccd453ae4487f..fdf3785ad4c5175f 100755
--- a/configure
+++ b/configure
@@ -19537,9 +19537,9 @@ int main()
|| fflush ((FILE *)0) < 0
|| (fpr = fopen ("conftest0", "r")) == (FILE *)0
|| fread (test_array, 1, 7, fpr) != 7)
- exit (1);
+ return 1;
else
- exit(0); }
+ return 0; }
_ACEOF
rm -f conftest$ac_exeext
if { (ac_try="$ac_link"
@@ -24022,7 +24022,7 @@ int main()
int i;
for (i=0; i < B; i++)
Array[i] = i - 3;
- exit (Array[1] != -2);
+ return Array[1] != -2;
}
_ACEOF
rm -f conftest$ac_exeext
diff --git a/configure.ac b/configure.ac
index 8fb7b640864eb4a8..d1f6d7e08c6946d4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -88,9 +88,9 @@ int main()
|| fflush ((FILE *)0) < 0
|| (fpr = fopen ("conftest0", "r")) == (FILE *)0
|| fread (test_array, 1, 7, fpr) != 7)
- exit (1);
+ return 1;
else
- exit(0); }]])],[AC_MSG_RESULT(yes);
AC_DEFINE(HAVE_NULL_FLUSH)],[AC_MSG_RESULT(no)],[AC_MSG_RESULT(no)])
+ return 0; }]])],[AC_MSG_RESULT(yes);
AC_DEFINE(HAVE_NULL_FLUSH)],[AC_MSG_RESULT(no)],[AC_MSG_RESULT(no)])
# Checks for header files: ANSI C, POSIX, and nonstandard Unix headers.
AC_HEADER_STDC
@@ -383,7 +383,7 @@ int main()
int i;
for (i=0; i < B; i++)
Array[[i]] = i - 3;
- exit (Array[[1]] != -2);
+ return Array[[1]] != -2;
}]])],
[ac_cv_c_gcc_strength_bug="no"],[ac_cv_c_gcc_strength_bug="yes"],[ac_cv_c_gcc_strength_bug="yes"])
)
if test "$ac_cv_c_gcc_strength_bug" = "yes"
[Prev in Thread] |
Current Thread |
[Next in Thread] |
- C99 compatibility fixes for the plotutils configure script,
Florian Weimer <=