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-rw-r--r--m4/compiler.m467
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+# compiler.m4 - autoconf macros for compiler settings
+#
+# Copyright © 2005 Scott James Remnant <scott@netsplit.com>.
+#
+# Permission is hereby granted, free of charge, to any person obtaining
+# a copy of this software and associated documentation files (the
+# "Software"), to deal in the Software without restriction, including
+# without limitation the rights to use, copy, modify, merge, publish,
+# distribute, sublicense, and/or sell copies of the Software, and to
+# permit persons to whom the Software is furnished to do so, subject to
+# the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
+# ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+
+# COMPILER_WARNINGS
+# ----------------------
+# Add configure option to enable additional compiler warnings and treat
+# them as errors.
+AC_DEFUN([COMPILER_WARNINGS],
+[AC_ARG_ENABLE(compiler-warnings,
+ AS_HELP_STRING([--enable-compiler-warnings],
+ [Enable additional compiler warnings]),
+[if test "x$enable_compiler_warnings" = "xyes"; then
+ if test "x$GCC" = "xyes"; then
+ CFLAGS="-Wall -Werror $CFLAGS"
+ fi
+ if test "x$GXX" = "xyes"; then
+ CXXFLAGS="-Wall -Werror $CXXFLAGS"
+ fi
+fi])dnl
+])# COMPILER_WARNINGS
+
+# COMPILER_OPTIMISATIONS
+# ---------------------------
+# Add configure option to disable optimisations.
+AC_DEFUN([COMPILER_OPTIMISATIONS],
+[AC_ARG_ENABLE(compiler-optimisations,
+ AS_HELP_STRING([--disable-compiler-optimisations],
+ [Disable compiler optimisations]),
+[if test "x$enable_compiler_optimisations" = "xno"; then
+ [CFLAGS=`echo "$CFLAGS" | sed -e "s/ -O[1-9]*\b/ -O0/g"`]
+fi])dnl
+])# COMPILER_OPTIMISATIONS
+
+# COMPILER_COVERAGE
+# ----------------------
+# Add configure option to enable coverage data.
+AC_DEFUN([COMPILER_COVERAGE],
+[AC_ARG_ENABLE(compiler-coverage,
+ AS_HELP_STRING([--enable-compiler-coverage],
+ [Enable generation of coverage data]),
+[if test "x$enable_compiler_coverage" = "xyes"; then
+ if test "x$GCC" = "xyes"; then
+ CFLAGS="$CFLAGS -fprofile-arcs -ftest-coverage"
+ fi
+fi])dnl
+])# COMPILER_COVERAGE