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Diffstat (limited to 'Build/source/m4/kpse-search-libs.m4')
-rw-r--r-- | Build/source/m4/kpse-search-libs.m4 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Build/source/m4/kpse-search-libs.m4 b/Build/source/m4/kpse-search-libs.m4 new file mode 100644 index 00000000000..ff24c0f40bf --- /dev/null +++ b/Build/source/m4/kpse-search-libs.m4 @@ -0,0 +1,23 @@ +# Public macros for the TeX Live (TL) tree. +# Copyright (C) 2014 Peter Breitenlohner <tex-live@tug.org> +# +# This file is free software; the copyright holder +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# KPSE_SEARCH_LIBS(VARIABLE, FUNCTION, SEARCH-LIBS, [ACTION-IF-NOT-FOUND]) +# ------------------------------------------------------------------------ +# Search for a library defining FUNCTION, if it's not already available and +# set the output variable VARIABLE to the required lib. +# If FUNCTION is not found, the shell code ACTION-IF-NOT-FOUND if given or +# AC_MSG_ERROR with a suitable text is executed. +AC_DEFUN([KPSE_SEARCH_LIBS], [dnl +kpse_search_save_LIBS=$LIBS +AC_SEARCH_LIBS([$2], [$3]) +LIBS=$kpse_search_save_LIBS +AS_CASE([$ac_cv_search_$2], + ["none required"], [], + [no], [m4_ifval([$4], [$4], [AC_MSG_ERROR([Sorry, did not find $2()])])], + [$1=$ac_cv_search_$2]) +AC_SUBST([$1])[]dnl +]) # KPSE_SEARCH_LIBS |