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configure: Added m4 check to detect possible non-expanded macros

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When autoconf encounters a macro name that it does not know, it assumes
that it is just a standard keyword that needs to end up in the generated
configure script.

This patch teaches m4 about the syntax used for our macros so it can now
that it is supposed to be a macro, and then it can stop and report the
problem.

Signed-off-by: Christophe CURIS <christophe.curis@free.fr>
This commit is contained in:
Christophe CURIS
2013-11-16 20:14:28 +01:00
committed by Carlos R. Mafra
parent a3ee595115
commit e946ef3ae5
1 changed files with 8 additions and 0 deletions
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8
m4/windowmaker.m4
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@@ -16,6 +16,14 @@
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
dnl Tell m4 to not allow stuff starting with "WM_" in the generated file
dnl because this is likely a problem of a macro that was not expanded as
dnl expected (with an exception for an already used variable name)
m4_pattern_forbid([^_?WM_])
m4_pattern_allow([^WM_OSDEP(_[A-Z]*)?$])
dnl
dnl WM_CHECK_XFT_VERSION(MIN_VERSION, [ACTION-IF-FOUND [,ACTION-IF-NOT-FOUND]])
dnl