diff options
author | Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> | 2010-09-12 18:54:54 (GMT) |
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committer | Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> | 2010-09-12 18:54:54 (GMT) |
commit | d34a5ec7d8003256b859421dc080be0362663678 (patch) | |
tree | 0eaff319c7efbd3257b9c1360ac897dc27b0890e /config/cc | |
parent | 4c326c29241784efbda7494c09068a103397b2f4 (diff) |
cc/gcc: do not force use of non-vital companion libraries
While GMP and MPFR are required by gcc>=4.3 (to build the frontends),
and MPC is required by gcc>=4.5, the other libs are not. If they are
present then gcc will enable advanced features; if they are missing,
then gcc will (should) simply disable those features.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Diffstat (limited to 'config/cc')
-rw-r--r-- | config/cc/gcc.in | 19 | ||||
-rw-r--r-- | config/cc/gcc.in.2 | 27 |
2 files changed, 43 insertions, 3 deletions
diff --git a/config/cc/gcc.in b/config/cc/gcc.in index 00d1dfa..2e64556 100644 --- a/config/cc/gcc.in +++ b/config/cc/gcc.in @@ -136,13 +136,22 @@ config CC_GCC_4_4_or_later bool default n select CC_GCC_4_3_or_later - select CC_GCC_USE_PPL_CLOOG + select CC_GCC_HAS_GRAPHITE config CC_GCC_4_5_or_later bool default n select CC_GCC_4_4_or_later - select CC_GCC_USE_MPC_LIBELF + select CC_GCC_USE_MPC + select CC_GCC_HAS_LTO + +config CC_GCC_HAS_GRAPHITE + bool + default n + +config CC_GCC_HAS_LTO + bool + default n config CC_GCC_USE_GMP_MPFR bool @@ -156,10 +165,14 @@ config CC_GCC_USE_PPL_CLOOG select PPL select CLOOG -config CC_GCC_USE_MPC_LIBELF +config CC_GCC_USE_MPC bool default n select MPC + +config CC_GCC_USE_LIBELF + bool + default n select LIBELF config CC_VERSION diff --git a/config/cc/gcc.in.2 b/config/cc/gcc.in.2 index 95d7037..1b4926b 100644 --- a/config/cc/gcc.in.2 +++ b/config/cc/gcc.in.2 @@ -7,6 +7,33 @@ config CC_GCC_ENABLE_TARGET_OPTSPACE This will compile crossgcc's libs with -Os. +config CC_GCC_USE_GRAPHITE + bool + prompt "Enable GRAPHITE loop optimisations" + default y + depends on CC_GCC_HAS_GRAPHITE + select CC_GCC_USE_PPL_CLOOG + help + Enable the GRAPHITE loop optimsations. + + This requires the PPL and CLooG companion libraries, and + those will be automatically build for you. + + On some systems (eg. Cygwin), PPL and/or CLooG may not + build properly (yet), so you'll have to say 'N' here. + +config CC_GCC_USE_LTO + bool + prompt "Enable LTO" + default y + depends on CC_GCC_HAS_LTO + select CC_GCC_USE_LIBELF + help + Enable the Link Time Optimisations. + + This will require the libelf companion library, and it + wil be build automatically for you. + config CC_STATIC_LIBSTDCXX bool prompt "Link libstdc++ statically into the gcc binary" |