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AC_HEADER_STDC causes a compile failure with autoconf 2.70

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From https://www.mail-archive.com/bug-autoconf@gnu.org/msg04408.html

> ... the long-obsolete AC_HEADER_STDC, previously used internally by
> AC_INCLUDES_DEFAULT, used AC_EGREP_HEADER.  The AC_HEADER_STDC macro
> is now a no-op (and is not used at all within Autoconf anymore), so
> that change is likely what made the first use of AC_EGREP_HEADER the
> one inside the if condition, causing the observed results.

The implication is that the test does nothing anyway, and due to it
being a no-op from 2.70 onwards, results in the required not being set
to yes, resulting in ./configure to fail.

Change-Id: Ic1ff38d87f791fbf1f2a80512f81bb7110392460
Signed-off-by: Jaco Kroon <jaco@uls.co.za>
This commit is contained in:
Jaco Kroon
2021-01-08 18:02:47 +02:00
committed by Friendly Automation
parent a25bcf70ed
commit 9c56870929
2 changed files with 0 additions and 121 deletions
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5
configure.ac
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@@ -616,11 +616,6 @@ if test -z $ac_header_dirent -o "$ac_header_dirent" = "no"; then
AC_MSG_ERROR([*** Could not find dirent header that defines 'DIR'.])
fi
AC_HEADER_STDC
if test "$ac_cv_header_stdc" != "yes"; then
AC_MSG_ERROR([*** ANSI C header files not found.])
fi
AC_HEADER_SYS_WAIT
if test "$ac_cv_header_sys_wait_h" != "yes"; then
AC_MSG_ERROR([*** POSIX.1 compatible sys/wait.h is required.])