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build: fix configure test for yacc 

It only works if 'bison' or 'byacc' are provided, but sometimes byacc
is installed as plain 'yacc'. The check fails for that.

I broke this in bdd8c11, restore Daniel's retrospectively clever check.

Signed-off-by: Ran Benita <ran234@gmail.com>
master
Ran Benita 2014-02-10 20:50:58 +02:00
parent 28d5f7708c
commit 1aabc52235
1 changed files with 2 additions and 1 deletions
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3
configure.ac
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@ -62,7 +62,8 @@ PKG_PROG_PKG_CONFIG
# Note: we use some yacc extensions, which work with either GNU bison
# (preferred) or byacc. Other yacc's may or may not work.
AC_PROG_YACC
AS_IF([test ! -f "src/xkbcomp/parser.c" -a "x$ac_cv_prog_YACC" = x], [
AC_PATH_PROG([YACC_INST], [$YACC])
AS_IF([test ! -f "src/xkbcomp/parser.c" -a "x$YACC_INST" = x], [
AC_MSG_ERROR([yacc not found - unable to compile src/xkbcomp/parser.y])
])