TingPing
8 years ago
3 changed files with 198 additions and 9 deletions
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# =========================================================================== |
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# http://www.gnu.org/software/autoconf-archive/ax_check_enable_debug.html |
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# =========================================================================== |
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# |
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# SYNOPSIS |
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# |
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# AX_CHECK_ENABLE_DEBUG([enable by default=yes/info/profile/no], [ENABLE DEBUG VARIABLES ...], [DISABLE DEBUG VARIABLES NDEBUG ...], [IS-RELEASE]) |
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# |
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# DESCRIPTION |
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# |
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# Check for the presence of an --enable-debug option to configure, with |
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# the specified default value used when the option is not present. Return |
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# the value in the variable $ax_enable_debug. |
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# |
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# Specifying 'yes' adds '-g -O0' to the compilation flags for all |
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# languages. Specifying 'info' adds '-g' to the compilation flags. |
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# Specifying 'profile' adds '-g -pg' to the compilation flags and '-pg' to |
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# the linking flags. Otherwise, nothing is added. |
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# |
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# Define the variables listed in the second argument if debug is enabled, |
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# defaulting to no variables. Defines the variables listed in the third |
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# argument if debug is disabled, defaulting to NDEBUG. All lists of |
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# variables should be space-separated. |
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# |
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# If debug is not enabled, ensure AC_PROG_* will not add debugging flags. |
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# Should be invoked prior to any AC_PROG_* compiler checks. |
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# |
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# IS-RELEASE can be used to change the default to 'no' when making a |
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# release. Set IS-RELEASE to 'yes' or 'no' as appropriate. By default, it |
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# uses the value of $ax_is_release, so if you are using the AX_IS_RELEASE |
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# macro, there is no need to pass this parameter. |
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# |
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# AX_IS_RELEASE([git-directory]) |
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# AX_CHECK_ENABLE_DEBUG() |
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# |
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# LICENSE |
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# |
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# Copyright (c) 2011 Rhys Ulerich <rhys.ulerich@gmail.com> |
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# Copyright (c) 2014, 2015 Philip Withnall <philip@tecnocode.co.uk> |
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# |
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# Copying and distribution of this file, with or without modification, are |
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# permitted in any medium without royalty provided the copyright notice |
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# and this notice are preserved. |
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#serial 5 |
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AC_DEFUN([AX_CHECK_ENABLE_DEBUG],[ |
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AC_BEFORE([$0],[AC_PROG_CC])dnl |
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AC_BEFORE([$0],[AC_PROG_CXX])dnl |
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AC_BEFORE([$0],[AC_PROG_F77])dnl |
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AC_BEFORE([$0],[AC_PROG_FC])dnl |
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AC_MSG_CHECKING(whether to enable debugging) |
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ax_enable_debug_default=m4_tolower(m4_normalize(ifelse([$1],,[no],[$1]))) |
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ax_enable_debug_is_release=m4_tolower(m4_normalize(ifelse([$4],, |
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[$ax_is_release], |
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[$4]))) |
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# If this is a release, override the default. |
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AS_IF([test "$ax_enable_debug_is_release" = "yes"], |
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[ax_enable_debug_default="no"]) |
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m4_define(ax_enable_debug_vars,[m4_normalize(ifelse([$2],,,[$2]))]) |
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m4_define(ax_disable_debug_vars,[m4_normalize(ifelse([$3],,[NDEBUG],[$3]))]) |
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AC_ARG_ENABLE(debug, |
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[AS_HELP_STRING([--enable-debug=]@<:@yes/info/profile/no@:>@,[compile with debugging])], |
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[],enable_debug=$ax_enable_debug_default) |
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# empty mean debug yes |
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AS_IF([test "x$enable_debug" = "x"], |
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[enable_debug="yes"]) |
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# case of debug |
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AS_CASE([$enable_debug], |
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[yes],[ |
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AC_MSG_RESULT(yes) |
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CFLAGS="${CFLAGS} -g -O0" |
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CXXFLAGS="${CXXFLAGS} -g -O0" |
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FFLAGS="${FFLAGS} -g -O0" |
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FCFLAGS="${FCFLAGS} -g -O0" |
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OBJCFLAGS="${OBJCFLAGS} -g -O0" |
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], |
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[info],[ |
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AC_MSG_RESULT(info) |
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CFLAGS="${CFLAGS} -g" |
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CXXFLAGS="${CXXFLAGS} -g" |
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FFLAGS="${FFLAGS} -g" |
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FCFLAGS="${FCFLAGS} -g" |
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OBJCFLAGS="${OBJCFLAGS} -g" |
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], |
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[profile],[ |
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AC_MSG_RESULT(profile) |
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CFLAGS="${CFLAGS} -g -pg" |
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CXXFLAGS="${CXXFLAGS} -g -pg" |
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FFLAGS="${FFLAGS} -g -pg" |
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FCFLAGS="${FCFLAGS} -g -pg" |
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OBJCFLAGS="${OBJCFLAGS} -g -pg" |
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LDFLAGS="${LDFLAGS} -pg" |
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], |
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[ |
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AC_MSG_RESULT(no) |
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dnl Ensure AC_PROG_CC/CXX/F77/FC/OBJC will not enable debug flags |
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dnl by setting any unset environment flag variables |
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AS_IF([test "x${CFLAGS+set}" != "xset"], |
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[CFLAGS=""]) |
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AS_IF([test "x${CXXFLAGS+set}" != "xset"], |
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[CXXFLAGS=""]) |
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AS_IF([test "x${FFLAGS+set}" != "xset"], |
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[FFLAGS=""]) |
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AS_IF([test "x${FCFLAGS+set}" != "xset"], |
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[FCFLAGS=""]) |
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AS_IF([test "x${OBJCFLAGS+set}" != "xset"], |
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[OBJCFLAGS=""]) |
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]) |
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dnl Define various variables if debugging is disabled. |
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dnl assert.h is a NOP if NDEBUG is defined, so define it by default. |
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AS_IF([test "x$enable_debug" = "xyes"], |
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[m4_map_args_w(ax_enable_debug_vars, [AC_DEFINE(], [,,[Define if debugging is enabled])])], |
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[m4_map_args_w(ax_disable_debug_vars, [AC_DEFINE(], [,,[Define if debugging is disabled])])]) |
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ax_enable_debug=$enable_debug |
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]) |
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# =========================================================================== |
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# http://www.gnu.org/software/autoconf-archive/ax_is_release.html |
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# =========================================================================== |
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# |
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# SYNOPSIS |
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# |
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# AX_IS_RELEASE(POLICY) |
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# |
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# DESCRIPTION |
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# |
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# Determine whether the code is being configured as a release, or from |
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# git. Set the ax_is_release variable to 'yes' or 'no'. |
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# |
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# If building a release version, it is recommended that the configure |
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# script disable compiler errors and debug features, by conditionalising |
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# them on the ax_is_release variable. If building from git, these |
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# features should be enabled. |
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# |
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# The POLICY parameter specifies how ax_is_release is determined. It can |
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# take the following values: |
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# |
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# * git-directory: ax_is_release will be 'no' if a '.git' directory exists |
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# * minor-version: ax_is_release will be 'no' if the minor version number |
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# in $PACKAGE_VERSION is odd; this assumes |
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# $PACKAGE_VERSION follows the 'major.minor.micro' scheme |
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# * micro-version: ax_is_release will be 'no' if the micro version number |
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# in $PACKAGE_VERSION is odd; this assumes |
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# $PACKAGE_VERSION follows the 'major.minor.micro' scheme |
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# * always: ax_is_release will always be 'yes' |
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# * never: ax_is_release will always be 'no' |
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# |
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# Other policies may be added in future. |
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# |
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# LICENSE |
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# |
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# Copyright (c) 2015 Philip Withnall <philip@tecnocode.co.uk> |
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# |
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# Copying and distribution of this file, with or without modification, are |
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# permitted in any medium without royalty provided the copyright notice |
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# and this notice are preserved. |
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|
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#serial 3 |
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AC_DEFUN([AX_IS_RELEASE],[ |
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AC_BEFORE([AC_INIT],[$0]) |
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m4_case([$1], |
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[git-directory],[ |
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# $is_release = (.git directory does not exist) |
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AS_IF([test -d .git],[ax_is_release=no],[ax_is_release=yes]) |
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], |
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[minor-version],[ |
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# $is_release = ($minor_version is even) |
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minor_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]][[^.]]*.\([[^.]][[^.]]*\).*/\1/'` |
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AS_IF([test "$(( $minor_version % 2 ))" -ne 0], |
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[ax_is_release=no],[ax_is_release=yes]) |
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], |
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[micro-version],[ |
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# $is_release = ($micro_version is even) |
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micro_version=`echo "$PACKAGE_VERSION" | sed 's/[[^.]]*\.[[^.]]*\.\([[^.]]*\).*/\1/'` |
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AS_IF([test "$(( $micro_version % 2 ))" -ne 0], |
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[ax_is_release=no],[ax_is_release=yes]) |
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], |
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[always],[ax_is_release=yes], |
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[never],[ax_is_release=no], |
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[ |
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AC_MSG_ERROR([Invalid policy. Valid policies: git-directory, minor-version.]) |
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]) |
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]) |
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