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Fix build with older pkg-config versions

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The PKG_CHECK_VAR macro was introduced in pkg-config 0.28. Guard the
invocation with m4_ifdef.

Fixes #374.
This commit is contained in:
Nick Wellnhofer 2022-08-05 16:24:51 +02:00
parent e986d09cf5
commit 3c4e4bb726
1 changed files with 2 additions and 1 deletions
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3
configure.ac
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@ -1226,7 +1226,8 @@ else
[have_libicu=no])
if test "x$have_libicu" = "xyes"; then
PKG_CHECK_VAR([ICU_DEFS], [icu-i18n], [DEFS])
m4_ifdef([PKG_CHECK_VAR],
[PKG_CHECK_VAR([ICU_DEFS], [icu-i18n], [DEFS])])
if test "x$ICU_DEFS" != "x"; then
CPPFLAGS="$CPPFLAGS $ICU_DEFS"
fi