# Public macros for the TeX Live (TL) tree. # Copyright (C) 2014 Peter Breitenlohner # # 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