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80 Commits

Author SHA1 Message Date
Marcel Raad
71d2d37005
curl-compilers.m4: accept -Og and -Ofast GCC flags 
-Og, introduced in GCC 4.8, optimizes for debugging experience.
-Ofast, introduced in GCC 4.7, builds on -O3 and enables further
optimizations breaking strict standards compliance.
When specified in CFLAGS, these were always overridden by -O0 or -O2.
Fix this by adding them to flags_opt_all.

Ref: https://gcc.gnu.org/onlinedocs/gcc-4.8.0/gcc/Optimize-Options.html
Ref: https://github.com/curl/curl/pull/1404#issuecomment-296401570
Closes https://github.com/curl/curl/pull/1440
 2017-04-24 10:56:56 +02:00
Marcel Raad
9168e2470d
curl-compilers.m4: turn implicit function declarations into errors 
This adds -Werror-implicit-function-declaration for GCC 2.95+ so that
these errors are visible at the point where they occur instead of only
at link time.
Implicit function declarations are illegal in C99 and C++ anyway, and
the same warning has been turned into an error for ICC in commit
3072c5b8a1.

Ref: https://gcc.gnu.org/onlinedocs/gcc-2.95.2/gcc_2.html#SEC8
Ref: https://curl.haxx.se/mail/lib-2017-04/0001.html
Closes https://github.com/curl/curl/pull/1419
 2017-04-15 21:17:56 +02:00
Daniel Stenberg
27302abb94 s/cURL/curl 
We're mostly saying just "curl" in lower case these days so here's a big
cleanup to adapt to this reality. A few instances are left as the
project could still formally be considered called cURL.
 2016-11-07 10:36:23 +01:00
Kamil Dudka
b2dcf0347f curl-compilers.m4: improve detection of GCC's -fvisibility= flag 
Some builds of GCC produce output on both stdout and stderr when --help
--verbose is used.  The 2>&1 redirection caused them to be arbitrarily
interleaved with each other because of stream buffering.  Consequently,
grep failed to match the fvisibility= string in the mixed output, even
though the string was present in GCC's standard output.

This led to silently disabling symbol hiding in some builds of curl.
 2016-06-21 12:58:24 +02:00
Dan Fandrich
093f9cd38d URLs: Change more haxx.se URLs from http: to https: 2016-02-03 01:45:21 +01:00
Daniel Stenberg
4af40b3646 URLs: change all http:// URLs to https:// 2016-02-03 00:19:02 +01:00
Daniel Stenberg
092f33d6bf configure: use icc options without space 
The latest version(s) of the icc compiler no longer accept the extra
space in the -we (warning enable), -wd (warning disable), etc.

Reported-by: Elmira A Semenova
Bug: http://curl.haxx.se/mail/lib-2013-09/0182.html
 2013-09-27 10:57:20 +02:00
Daniel Stenberg
09634f46fb configure: improve CURL_CHECK_COMPILER_PROTOTYPE_MISMATCH 
The compiler test used a variable before it was assigned when it tried
to see how it acts on a mismatching prototype, which could cause a false
positive.
 2013-09-07 11:15:18 +02:00
Yang Tse
70b5173410 configure: use XC_LIBTOOL for portability across libtool versions 2013-03-08 13:27:45 +01:00
Yang Tse
9d1effad05 configure: autotools compatibility fixes - step I 
Fix proper macro expansion order across autotools versions for
C compiler and preprocessor program checks.
 2013-01-20 20:23:20 +01:00
Yang Tse
57fa576a35 configure: check if compiler halts on function prototype mismatch 2012-12-16 18:51:51 +01:00
Daniel Stenberg
c277bd6ce7 autoconf: don't force-disable compiler debug option 
When nothing is told to configure, we should not enforce switching off
debug options with -g0 (or similar). We instead don't use -g at all in
that situaion and therefore allow the user's CFLAGS settings possibly
dictate what to do.
 2012-11-16 13:06:49 +01:00
Yang Tse
60d5a16b99 curl-compilers.m4: remove -Wstrict-aliasing=3 from clang 
Currently it is unknown if there is any version of clang that
actually supports -Wstrict-aliasing. What is known is that there
are several that don't support it.
 2012-06-29 16:40:23 +02:00
Yang Tse
f1474db360 curl-compilers.m4: -Wstrict-aliasing=3 for warning enabled gcc and clang builds 2012-06-26 21:24:30 +02:00
Yang Tse
bd12c44d35 curl-compilers.m4: -Wno-pedantic-ms-format for Windows gcc 4.5 builds 
When building a Windows target with gcc 4.5 or newer and strict compiler
warnings enabled use -Wno-pedantic-ms-format in addition to other flags.
 2012-04-16 22:12:02 +02:00
Jonathan Nieder
8b63b48627 headers: surround GCC attribute names with double underscores 
This protects from attribute names being defined by third party's code.

Improvement: http://curl.haxx.se/mail/lib-2012-04/0127.html
 2012-04-14 15:06:57 +02:00
Yang Tse
9e24b9c7af build adjustments: CURL_HIDDEN_SYMBOLS no longer defined in config files 
configure script now provides conditional definitions for Makefile.am
that result in CURL_HIDDEN_SYMBOLS being defined by resulting makefiles
when appropriate.

Additionally, configure script option for symbol hiding control is now
named --enable-symbol-hiding --disable-symbol-hiding. While still valid,
old option name --enable-hidden-symbols --disable-hidden-symbols will
be deprecated in some future release.
 2012-04-11 19:33:54 +02:00
Yang Tse
3ef6418b61 curl-compilers.m4: serial number bump 2011-08-08 18:25:01 +02:00
Yang Tse
56ef3e295f curl-compilers.m4: CURL_CONVERT_INCLUDE_TO_ISYSTEM adjustments: 
Add CURL_CHECK_COMPILER as a requirement.

Ensure macro does nothing unless GNU_C or CLANG compiler is used.

This should allow usage of this macro in unforeseen placements.
 2011-08-08 17:50:16 +02:00
Yang Tse
fba00c9f7b xlc: avoid preprocessor definition usage when linking 2011-06-04 04:27:09 +02:00
Yang Tse
dd5d3518e4 configure: undo using autobuilds to temporarily verify strict aliasing warnings. 2010-12-02 19:09:15 +01:00
Yang Tse
1c4fa240be configure: use autobuilds to temporarily verify strict aliasing warnings. 
Temporarily, When cross-compiling with gcc 3.0 or later, enable strict aliasing
rules and warnings. Given that cross-compiled targets autobuilds do not run the
 2010-11-18 17:12:15 +01:00
Yang Tse
7cebf22d57 serial number bump 2010-11-09 01:40:25 +01:00
Daniel Stenberg
2309b4e330 remove the CVSish $Id$ lines 2010-03-24 11:02:54 +01:00
Daniel Johnson
3cd5b1cfb0 Fix warnings for clang 2010-03-22 19:44:45 +01:00
Yang Tse
d9291eb4b8 replaced intel compiler option -no-ansi-alias with -fno-strict-aliasing 2010-03-17 10:44:28 +00:00
Daniel Stenberg
f5d8c0befc Daniel Johnson provided fixes for building with the clang compiler 2010-03-05 22:53:30 +00:00
Dan Fandrich
d3e35d49ae Added a few more compiler warning options for gcc. 2009-06-17 02:26:39 +00:00
Yang Tse
065047dc62 Added --enable-curldebug configure option to enable and disable building 
with the low-level curl debug memory tracking 'feature' to allow decoupled
setting from --enable-debug.
 2009-06-09 17:59:28 +00:00
Yang Tse
f3e6a582d4 remove outdated comment 2009-05-15 09:35:46 +00:00
Yang Tse
7a928b40f3 Proper naming for the experimental compiler test and moved to *-compilers.m4 2009-05-07 13:58:15 +00:00
Yang Tse
cfda3e6a48 Moved *_CHECK_COMPILER_HALT_ON_ERROR and *_CHECK_COMPILER_ARRAY_SIZE_NEGATIVE to *-compilers.m4 along with other *_CHECK_COMPILER_* 2009-05-07 11:06:48 +00:00
Yang Tse
f6b55fae79 remove compiler options used while debugging the icc 9.1 optimizer issue 2009-04-17 07:48:37 +00:00
Yang Tse
9bb1854398 Set HP-UX compiler warning level back to the one that exposes 
the socklen_t issue on this platform.
 2009-04-15 22:54:25 +00:00
Yang Tse
c36f0e71b6 attempting to keep lines below 80 chars 2008-11-18 20:13:55 +00:00
Dan Fandrich
820011dedc Added more compiler warning options for gcc 4.3 2008-11-17 21:11:10 +00:00
Yang Tse
d104216bbe icc adjustments: 
Select ANSI C89 dialect plus GNU extensions, again.
 2008-10-25 04:18:48 +00:00
Yang Tse
71edaf4d01 some more temporary magic for the icc seg-fault issue 2008-10-24 12:23:24 +00:00
Yang Tse
2b77d50776 icc permanent adjustment: 
Select precise floating-point model, otherwise doubles are less than 64-bit wide

icc test adjustment:

  Select c89 dialect
 2008-10-24 11:27:09 +00:00
Yang Tse
198fa5e3c7 icc adjustments: 
Enable more icc warnings.

  Optimization disabling options used only for icc 9.1
 2008-10-23 10:04:06 +00:00
Yang Tse
b93f4f623c some more temporary magic for the icc seg-fault issue 2008-10-22 13:30:09 +00:00
Yang Tse
db325d1f43 some more temporary magic for the icc seg-fault issue 2008-10-21 17:54:18 +00:00
Yang Tse
231a51fe7a some more temporary magic for the icc seg-fault issue 2008-10-20 15:56:08 +00:00
Yang Tse
8d0cbaf8df messages initially intended only for debug purposes, now become permanent 
since these are extremely useful when compiler rejects a set of options.
 2008-10-19 23:50:18 +00:00
Yang Tse
07c3aaeea1 fix missing double-quotes 2008-10-17 17:11:11 +00:00
Yang Tse
fb66d51796 some more temporary magic for the icc seg-fault issue 2008-10-16 01:45:07 +00:00
Yang Tse
be760bed7e Ensure that shell variable contents which have active meaning 
to the shell echo command are not interpreted when trying to
remove extra whitespace from shell variable content.
 2008-10-15 18:10:02 +00:00
Yang Tse
2f2ed4e40e Adjust Watcom C warnings: 
Disable warnings on structure members padding.
 2008-10-14 23:06:39 +00:00
Yang Tse
9786e7faeb Adjust Tiny C basic options: 
Remove -b from debug-enabled configuration, as Tiny C might have
  been built without the memory and bounds checker support.
 2008-10-14 15:24:02 +00:00
Yang Tse
fde4b823f1 Adjust GCC warnings: 
Better disable following warnings when cross-compiling with a gcc older
  than 3.0, to avoid warnings from third party system headers:

    -Wmissing-declarations
    -Wmissing-prototypes
    -Wunused
    -Wshadow
 2008-10-14 14:19:34 +00:00