configure: added --enable-build-type=TYPE

Useful to quickly define settings combination. Individual settings still
could be overridden by individual parameters.

Added autoconf macros for compiler and linker flags

1 files changed, 34 insertions, 0 deletions

diff --git a/m4/mhd_check_add_cc_ldflag.m4 b/m4/mhd_check_add_cc_ldflag.m4
new file mode 100644
index 00000000..132d33ab
--- /dev/null
+++ b/m4/mhd_check_add_cc_ldflag.m4
@@ -0,0 +1,34 @@
+# SYNOPSIS
+#
+#   MHD_CHECK_ADD_CC_LDFLAG([FLAG-TO-TEST], [VARIABLE-TO-EXTEND],
+#                           [ACTION-IF-SUPPORTED], [ACTION-IF-NOT-SUPPORTED])
+#
+# DESCRIPTION
+#
+#   This macro checks whether the specific compiler flag is supported.
+#   The check is performing by appending FLAG-TO-TEST to the value of
+#   VARIABLE-TO-EXTEND (LDFLAGS if not specified), then prepending result to
+#   LDFLAGS (unless VARIABLE-TO-EXTEND is LDFLAGS), and then performing compile
+#   and link test. If test succeed without warnings, then the flag is added to
+#   VARIABLE-TO-EXTEND. Otherwise, if compile and link without test flag cannot
+#   be done without any warning, the flag is considered to be unsuppoted.
+#
+#   Example usage:
+#
+#     MHD_CHECK_ADD_CC_LDFLAG([-pie], [additional_LDFLAGS])
+#
+#
+# LICENSE
+#
+#   Copyright (c) 2022 Karlson2k (Evgeny Grin) <k2k@narod.ru>
+#
+#   Copying and distribution of this file, with or without modification, are
+#   permitted in any medium without royalty provided the copyright notice
+#   and this notice are preserved. This file is offered as-is, without any
+#   warranty.
+
+#serial 1
+
+AC_DEFUN([MHD_CHECK_ADD_CC_LDFLAG],[dnl
+_MHD_CHECK_ADD_CC_XFLAG([$1],[$2],[$3],[$4],[[LDFLAGS]])dnl
+])