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configure.ac: Add custom optimization level ac_arg_with.
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configure.ac
39
configure.ac
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@ -205,6 +205,40 @@ AC_ARG_ENABLE(optimize, AC_HELP_STRING([--enable-optimize], [Enable optimization
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AM_CONDITIONAL([OPTIMIZE], [[[[ "$OPTIMIZE" = "1" ]]]])
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AM_CONDITIONAL([OPTIMIZE], [[[[ "$OPTIMIZE" = "1" ]]]])
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dnl
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dnl Explicit optimization level switch
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dnl
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AC_MSG_CHECKING(whether to explicitly set the optimization level)
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AC_ARG_WITH(optimize-level, AC_HELP_STRING([--with-optimize-level[[[=3]]]], [Explicitly set the optimize level]),
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[
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optimize_level=$withval
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AC_MSG_RESULT([yes, enabling optimization level -O$optimize_level])
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AC_SUBST(OPTMIZE_LEVEL, $optimize_level)
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RB_DEFINE_UNQUOTED([OPTIMIZE_LEVEL], [$optimize_level], [User configured optimization level])
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], [
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AM_COND_IF(OPTIMIZE,
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[
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optimize_level="3"
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AC_MSG_RESULT([no, but --enable-optimize has implied level -O$optimize_level])
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AC_SUBST(OPTIMIZE_LEVEL, $optimize_level)
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RB_DEFINE_UNQUOTED([OPTIMIZE_LEVEL], [$optimize_level], [Explicitly set release mode optimization])
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], [
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AM_COND_IF(DEBUG,
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[
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optimize_level="g"
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AC_MSG_RESULT([no, but --enable-debug has implied level -O$optimize_level])
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AC_SUBST(OPTIMIZE_LEVEL, $optimize_level)
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RB_DEFINE_UNQUOTED([OPTIMIZE_LEVEL], [$optimize_level], [Debug mode optimization level])
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], [
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optimize_level="3"
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AC_MSG_RESULT([no, but release mode has implied level -O$optimize_level])
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AC_SUBST(OPTIMIZE_LEVEL, $optimize_level)
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RB_DEFINE_UNQUOTED([OPTIMIZE_LEVEL], [$optimize_level], [Release mode optimization])
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])
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])
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])
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dnl
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dnl
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dnl Explicit log level
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dnl Explicit log level
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dnl
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dnl
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@ -293,7 +327,7 @@ dnl
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AM_COND_IF([OPTIMIZE],
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AM_COND_IF([OPTIMIZE],
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[
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[
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CXXFLAGS+=" -O3"
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CXXFLAGS+=" -O$optimize_level"
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CXXFLAGS+=" -fweb"
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CXXFLAGS+=" -fweb"
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CXXFLAGS+=" -fdata-sections"
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CXXFLAGS+=" -fdata-sections"
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CXXFLAGS+=" -ffunction-sections"
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CXXFLAGS+=" -ffunction-sections"
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@ -316,7 +350,7 @@ AM_COND_IF([OPTIMIZE],
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dnl remember to axe this when lto is enabled
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dnl remember to axe this when lto is enabled
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CXXFLAGS+=" -ggdb"
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CXXFLAGS+=" -ggdb"
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], [
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], [
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CXXFLAGS+=" -Og"
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CXXFLAGS+=" -O$optimize_level"
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CXXFLAGS+=" -ggdb"
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CXXFLAGS+=" -ggdb"
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])
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])
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@ -1540,6 +1574,7 @@ echo "Precompiled headers ............... $build_pch"
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echo "Developer debug ................... $debug"
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echo "Developer debug ................... $debug"
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echo "Developer assert .................. $assert"
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echo "Developer assert .................. $assert"
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echo "Optimized build ................... $optimize"
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echo "Optimized build ................... $optimize"
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echo "Optimization level ................ $optimize_level"
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echo "Logging level ..................... $LOG_LEVEL"
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echo "Logging level ..................... $LOG_LEVEL"
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echo "Installing into ................... $prefix"
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echo "Installing into ................... $prefix"
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echo
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echo
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