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| author | Will Estes <westes@users.noreply.github.com> | 2023-01-15 09:27:49 -0500 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-01-15 09:27:49 -0500 |
| commit | 3a24fa0366b4ac007c32a51dca99b5fc3755143c (patch) | |
| tree | 318d38ed534692e0ccd97713ba28011b97cef9ea | |
| parent | 4ec57cf108db178b13ec0baa6e7bf7f6424658bd (diff) | |
| parent | 0954f389d3eb50f0d39eba06eb0f2730d2ad3d50 (diff) | |
| download | flex-git-3a24fa0366b4ac007c32a51dca99b5fc3755143c.tar.gz | |
Merge pull request #399 from Explorer09/autotools-version
build: correct and document minimum Autotools reqirement in configure.ac
| -rw-r--r-- | configure.ac | 23 |
1 files changed, 20 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index 9b5afd2..7594d1a 100644 --- a/configure.ac +++ b/configure.ac @@ -24,13 +24,22 @@ # autoconf requirements and initialization +dnl We recommend builders to regenerate configure and auxiliary scripts with +dnl exact versions of tools that generate flex release tarball, or latest +dnl versions of tools for flex development. The minimum feature and version +dnl requirements are provided for information only (no guarantee that the tools +dnl will work and we may bump requirements with future code changes). +dnl Uses AC_PATH_PROGS_FEATURE_CHECK. Requires autoconf-2.62 as minimum. +AC_PREREQ([2.62]) AC_INIT([the fast lexical analyser generator],[2.6.4],[flex-help@lists.sourceforge.net],[flex]) -AC_PREREQ([2.60]) AC_CONFIG_SRCDIR([src/scan.l]) AC_CONFIG_AUX_DIR([build-aux]) AC_USE_SYSTEM_EXTENSIONS +dnl "LT_*" macros and "libtoolize --install" require libtool-2.2 as minimum. +LT_PREREQ([2.2]) LT_INIT -AM_INIT_AUTOMAKE([1.15 -Wno-portability foreign std-options dist-lzip parallel-tests subdir-objects]) +dnl Uses dist-lzip. Requires automake-1.11.3 as minimum. +AM_INIT_AUTOMAKE([1.11.3 -Wno-portability foreign std-options dist-lzip parallel-tests subdir-objects]) AC_CONFIG_HEADER([src/config.h]) AC_CONFIG_LIBOBJ_DIR([lib]) AC_CONFIG_MACRO_DIR([m4]) @@ -40,7 +49,15 @@ AC_SUBST(SHARED_VERSION_INFO) # checks for programs AM_GNU_GETTEXT([external]) -AM_GNU_GETTEXT_VERSION([0.19.7]) +dnl Try to pull in latest gettext infrastructure ("po" and "m4") files. +dnl Unfortunately autoreconf as of 2.69 doesn't recognize +dnl AM[_]GNU[_]GETTEXT_REQUIRE_VERSION so we provide AM[_]GNU[_]GETTEXT_VERSION +dnl as fallback. (autopoint will ignore latter if former is specified.) +dnl +dnl Bugs in gettext before 0.14 prevent building flex with it. +dnl FLEX_GNU_GETTEXT_REAL_REQUIRE_VERSION=0.14 +AM_GNU_GETTEXT_REQUIRE_VERSION([0.19.6]) +AM_GNU_GETTEXT_VERSION([0.19.6]) AC_PROG_YACC AS_IF([test "$YACC" != 'bison -y'], [ YACC="\${top_srcdir}/build-aux/missing bison -y" |