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Diffstat (limited to 'Build/source/m4/kpse-lex.m4')
-rw-r--r-- | Build/source/m4/kpse-lex.m4 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Build/source/m4/kpse-lex.m4 b/Build/source/m4/kpse-lex.m4 new file mode 100644 index 00000000000..ed77e6a8b24 --- /dev/null +++ b/Build/source/m4/kpse-lex.m4 @@ -0,0 +1,23 @@ +# Private macros for the kpathsea library. +# Copyright (C) 2003 - 2009 Karl Berry <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. + +# serial 1 + +# KPSE_PROG_LEX() +# --------------- +# Like AC_PROG_LEX, with the flag '-l' for flex. +AC_DEFUN([KPSE_PROG_LEX], +[AC_PROG_LEX +# Work around a problem with Flex Version 2.5.31 which needs -l flag. +# Since all recent versions of flex support -l, don't check for the +# specific version, but check that at least "--version" is supported. +# We also want to catch LEX=/some/where/flex, so: +case $LEX in + *flex) $LEX --version >/dev/null 2>&1 && LEX="$LEX -l" ;; +esac +]) # KPSE_PROG_LEX + |