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build: modernize to newer Autoconf releases

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* configure.ac: here.
This commit is contained in:
Akim Demaille
2021-08-12 09:25:21 +02:00
parent 9307c173c7
commit f387ffc1d3
1 changed files with 3 additions and 3 deletions
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6
configure.ac
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@@ -20,7 +20,7 @@
# keyword in at least string.h from gnulib. We need Autoconf 2.68 or
# better to avoid a typo in the 'configure --help' entry for the YACC
# environment variable.
AC_PREREQ([2.68])
AC_PREREQ([2.71])
m4_pattern_forbid([^_?(gl_[A-Z]|AX_|BISON_)])
m4_pattern_allow([^BISON_USE_NLS$])
@@ -54,7 +54,7 @@ AM_SILENT_RULES([yes])
AC_CONFIG_HEADERS([lib/config.h:lib/config.in.h])
# Checks for the compiler.
AC_PROG_CC_STDC
AC_PROG_CC
AC_PROG_CXX
# Gnulib (early checks).
@@ -252,7 +252,7 @@ AM_CONDITIONAL([ENABLE_JAVA], [test x"$CONF_JAVAC" != x && test x"$CONF_JAVA" !=
AC_ARG_ENABLE([yacc],
[AC_HELP_STRING([--disable-yacc],
[AS_HELP_STRING([--disable-yacc],
[do not build a yacc command or an -ly library])],
, [enable_yacc=yes])
AM_CONDITIONAL([ENABLE_YACC], [test "$enable_yacc" = yes])