Build: Use AM_GNU_GETTEXT_REQUIRE_VERSION and require 0.19.6.

This bumps the version requirement from 0.19 (from 2014) to
0.19.6 (2015).

Using only the old AM_GNU_GETTEXT_VERSION results in old
gettext infrastructure being placed in the package. By using
both macros we get the latest gettext files while the other
programs in the Autotools family can still see the old macro.

diff --git a/configure.ac b/configure.ac
index c8f76e43e77c6d3f7635e88f289073745b88c928..0915afc36a6037ef31a66f941904bb952af4e0b1 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -643,9 +643,13 @@ AM_CONDITIONAL([COND_SHARED], [test "x$enable_shared" != xno])
 # Checks for libraries.
 ###############################################################################
 
+dnl Support for _REQUIRE_VERSION was added in gettext 0.19.6. If both
+dnl _REQUIRE_VERSION and _VERSION are present, the _VERSION is ignored.
+dnl We use both for compatibility with other programs in the Autotools family.
 echo
 echo "Initializing gettext:"
-AM_GNU_GETTEXT_VERSION([0.19])
+AM_GNU_GETTEXT_REQUIRE_VERSION([0.19.6])
+AM_GNU_GETTEXT_VERSION([0.19.6])
 AM_GNU_GETTEXT([external])