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build-sys: make bzip2 really optional

This commit is contained in:
Lennart Poettering 2015-01-27 17:24:11 +01:00
parent 0ef403877a
commit 831f18cbf3
1 changed files with 5 additions and 3 deletions
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8
configure.ac
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@ -580,11 +580,13 @@ AM_CONDITIONAL(HAVE_ZLIB, [test "$have_zlib" = "yes"])
# ------------------------------------------------------------------------------
have_bzip2=no
AC_ARG_ENABLE(bzip2, AS_HELP_STRING([--enable-bzip2], [Enable optional BZIP2 support]))
AC_ARG_ENABLE(bzip2, AS_HELP_STRING([--enable-bzip2], [Disable optional BZIP2 support]))
AS_IF([test "x$enable_bzip2" != "xno"], [
AC_CHECK_HEADERS(bzlib.h,
[AC_DEFINE(HAVE_BZIP2, 1, [Define in BZIP2 is available]) have_bzip2=yes],
[AC_MSG_ERROR([*** BZIP2 support requested but headers not found])])
[AC_DEFINE(HAVE_BZIP2, 1, [Define in BZIP2 is available])
have_bzip2=yes],
[AS_IF([test "x$have_bzip2" = xyes], [AC_MSG_ERROR([*** BZIP2 support requested but headers not found])])
])
])
AM_CONDITIONAL(HAVE_BZIP2, [test "$have_bzip2" = "yes"])