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135 lines
4.1 KiB
135 lines
4.1 KiB
15 years ago
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dnl --enable-fast-malloc - depends on $KDE_MALLOC
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dnl --disable-fast-malloc - disabled
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dnl --enable-fast-malloc=full - enabled always
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dnl
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dnl gcc3.0 needs -finline-limit=100000 (large num)
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kde_fast_malloc=
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AC_ARG_ENABLE(fast-malloc,
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[ --enable-fast-malloc Use own malloc implementation : yes,no,full,debug],
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[
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if test "$enableval" = "full"; then
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kde_fast_malloc=full
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elif test "$enableval" = "yes"; then
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kde_fast_malloc=yes
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elif test "$enableval" = "debug"; then
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kde_fast_malloc=debug
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else
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kde_fast_malloc=no
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fi
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],
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[
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kde_fast_malloc=notgiven
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])
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dnl gcc needed for __inline__
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if test "$kde_fast_malloc" != "no"; then
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if test "$GCC" != "yes"; then
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if test "$kde_fast_malloc" = "notgiven"; then
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kde_fast_malloc=no
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else
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AC_MSG_ERROR([Fast malloc needs GCC.])
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kde_fast_malloc=no
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fi
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fi
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fi
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if test "$kde_fast_malloc" != "no"; then
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dnl platforms for which there's a spinlock implementation
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case $target_cpu in
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i?86)
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AC_DEFINE(KDE_MALLOC_X86, 1, [The platform is x86])
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;;
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*)
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if test "$kde_fast_malloc" = "notgiven"; then
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kde_fast_malloc=no
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else
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AC_MSG_ERROR([Fast malloc is not supported on this platform (missing spinlock implementation).])
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fi
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;;
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esac
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dnl warn on untested platforms
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case $target_os in
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linux*) ;;
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freebsd*) ;;
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*)
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if test "$kde_fast_malloc" = "notgiven"; then
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kde_fast_malloc=no
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else
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AC_MSG_WARN([Fast malloc is not tested on this platform. The build may fail or the executables may crash.])
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fi
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;;
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esac
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fi
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if test "$kde_fast_malloc" = "yes" -o "$kde_fast_malloc" = "notgiven" -o "$kde_fast_malloc" = "debug"; then
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dnl $KDE_MALLOC needs glibc (__libc_malloc etc.)
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AC_CACHE_CHECK([if the libc is glibc],kde_cv_libc_glibc,
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[AC_TRY_COMPILE(
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[#include<stdlib.h>],
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[
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#ifndef __GLIBC__
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error no glibc
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#endif
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],
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[kde_cv_libc_glibc=yes],
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[kde_cv_libc_glibc=no])
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])
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if test "$kde_cv_libc_glibc" = "yes"; then
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AC_DEFINE(KDE_MALLOC_GLIBC, 1, [The libc used is glibc])
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else
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if test "$kde_fast_malloc" = "notgiven"; then
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kde_fast_malloc=notgiven_full
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elif test "$enableval" = "debug"; then
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AC_MSG_WARN([This libc is not supported for fast malloc. Runtime disabling won't work.])
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kde_fast_malloc=debug_full
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else
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AC_MSG_ERROR([This libc is not supported for fast malloc. Either use --enable-fast-malloc=full, or don't use it at all.])
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fi
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fi
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fi
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if test "$kde_fast_malloc" = "notgiven"; then
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#kde_fast_malloc=yes
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kde_fast_malloc=no
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fi
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if test "$kde_fast_malloc" = "notgiven_full"; then
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if test "$kde_use_debug_code" = "no"; then
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#kde_fast_malloc=full
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kde_fast_malloc=no
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else
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kde_fast_malloc=no
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fi
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fi
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AC_MSG_CHECKING(whether to enable fast malloc)
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if test "$kde_fast_malloc" = "yes"; then
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AC_MSG_RESULT(yes)
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elif test "$kde_fast_malloc" = "full"; then
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AC_MSG_RESULT([yes(full)])
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elif test "$kde_fast_malloc" = "debug"; then
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AC_MSG_RESULT([yes(debug)])
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elif test "$kde_fast_malloc" = "debug_full"; then
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AC_MSG_RESULT([yes(full+debug)])
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else
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AC_MSG_RESULT(no)
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fi
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if test "$kde_fast_malloc" != "no"; then
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AC_DEFINE(KDE_MALLOC, 1, [Use own malloc implementation])
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fi
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if test "$kde_fast_malloc" = "debug" -o "$kde_fast_malloc" = "debug_full"; then
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AC_DEFINE(KDE_MALLOC_DEBUG, 1, [Enable debugging in fast malloc])
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fi
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if test "$kde_fast_malloc" = "full" -o "$kde_fast_malloc" = "debug_full"; then
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AC_DEFINE(KDE_MALLOC_FULL, 1, [Make alloc as fast as possible])
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fi
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dnl -finline-limit=<large num> is needed for gcc3 in order to inline large functions
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KDE_CHECK_COMPILER_FLAG(finline-limit=100000,
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[KDE_FORCE_INLINE="-finline-limit=100000"],
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[KDE_FORCE_INLINE= ])
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AC_SUBST(KDE_FORCE_INLINE)
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