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Generate a configure error if a dependency explicitly enabled with --with cannot be found 

Originally committed to SVN as r6105.
This commit is contained in:
Thomas Goyne 2011-12-22 21:26:03 +00:00
parent f2c62dad3d
commit ac498f75d5
1 changed files with 9 additions and 2 deletions
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11
aegisub/m4macros/ac_agi.m4
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@ -33,10 +33,17 @@ AC_DEFUN([AC_AGI_LINK],[
AC_DEFUN([AGI_OPT_PKG], [
m4_define([varname], m4_bpatsubst([$1], [-.*], []))dnl
m4_define([upper], m4_translit(varname, [a-z], [A-Z]))dnl
AC_ARG_WITH(varname, AS_HELP_STRING([--without-][varname], [$2]))
AS_IF([test x$with_]varname[ = xno],
varname[_disabled="(disabled)"],
[PKG_CHECK_MODULES(upper, $1 >= varname[]_required_version, [with_]varname[="yes"], [with_]varname[="no"])])
AS_IF([test x$with_]varname[ = xyes], AC_DEFINE([WITH_]upper, 1, $3))
[PKG_CHECK_MODULES(upper, $1 >= varname[]_required_version, [
AC_DEFINE([WITH_]upper, 1, $3)
with_[]varname="yes"
], [
AS_IF([test x$with_]varname[ = xyes],
[AC_MSG_FAILURE([--with-]varname[ was specified, but ]varname[ could not be found])])
with_[]varname="no"
])])
AC_SUBST([with_]varname)
])