b5c5909f30
curl-compilers.m4: enable double-promotion warning
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Enable -Wdouble-promotion for both GCC and clang. It warns on implicit
promotion from float to double.
Closes https://github.com/curl/curl/pull/1578
2017-06-16 22:31:57 +02:00
783ce023a5
curl-compilers.m4: enable vla warning for clang
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Previously, that warning was only implicitly active in C90 mode.
Enable it unconditionally as already done for GCC.
Closes https://github.com/curl/curl/pull/1578
2017-06-16 22:31:48 +02:00
5e796c5e94
curl-compilers.m4: escape square brackets in regex
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Otherwise, they are removed in the final configure file.
Also changed sed to "$SED" like in most other calls in this file.
2017-06-01 17:47:37 +02:00
5598b0bd63
curl-compilers.m4: fix compiler_num for clang
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"clang -dumpversion" always returns "4.2.1", the GCC version that clang
was initially compatible to. Use "clang -v" instead, which returns the
actual clang version.
Fixes https://github.com/curl/curl/issues/1522
Closes https://github.com/curl/curl/pull/1523
2017-06-01 08:48:05 +02:00
314a7fa3ce
curl-compilers.m4: enable -Wshift-sign-overflow for clang
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clang 2.9+ supports -Wshift-sign-overflow, which warns about undefined
behavior on signed left shifts when shifting by too many places.
Ref: https://github.com/curl/curl/issues/1516
Closes https://github.com/curl/curl/pull/1517
2017-05-31 10:06:53 +02:00
71d2d37005
curl-compilers.m4: accept -Og and -Ofast GCC flags
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-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
9168e2470d
curl-compilers.m4: turn implicit function declarations into errors
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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
3072c5b8a1https://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
27302abb94
s/cURL/curl
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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
b2dcf0347f
curl-compilers.m4: improve detection of GCC's -fvisibility= flag
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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
093f9cd38d
URLs: Change more haxx.se URLs from http: to https:
2016-02-03 01:45:21 +01:00
4af40b3646
URLs: change all http:// URLs to https://
2016-02-03 00:19:02 +01:00
092f33d6bf
configure: use icc options without space
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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
09634f46fb
configure: improve CURL_CHECK_COMPILER_PROTOTYPE_MISMATCH
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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
70b5173410
configure: use XC_LIBTOOL for portability across libtool versions
2013-03-08 13:27:45 +01:00
9d1effad05
configure: autotools compatibility fixes - step I
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Fix proper macro expansion order across autotools versions for
C compiler and preprocessor program checks.
2013-01-20 20:23:20 +01:00
57fa576a35
configure: check if compiler halts on function prototype mismatch
2012-12-16 18:51:51 +01:00
c277bd6ce7
autoconf: don't force-disable compiler debug option
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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
60d5a16b99
curl-compilers.m4: remove -Wstrict-aliasing=3 from clang
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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
f1474db360
curl-compilers.m4: -Wstrict-aliasing=3 for warning enabled gcc and clang builds
2012-06-26 21:24:30 +02:00
bd12c44d35
curl-compilers.m4: -Wno-pedantic-ms-format for Windows gcc 4.5 builds
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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
8b63b48627
headers: surround GCC attribute names with double underscores
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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
9e24b9c7af
build adjustments: CURL_HIDDEN_SYMBOLS no longer defined in config files
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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
3ef6418b61
curl-compilers.m4: serial number bump
2011-08-08 18:25:01 +02:00
56ef3e295f
curl-compilers.m4: CURL_CONVERT_INCLUDE_TO_ISYSTEM adjustments:
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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
fba00c9f7b
xlc: avoid preprocessor definition usage when linking
2011-06-04 04:27:09 +02:00
dd5d3518e4
configure: undo using autobuilds to temporarily verify strict aliasing warnings.
2010-12-02 19:09:15 +01:00
1c4fa240be
configure: use autobuilds to temporarily verify strict aliasing warnings.
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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
7cebf22d57
serial number bump
2010-11-09 01:40:25 +01:00
2309b4e330
remove the CVSish $Id$ lines
2010-03-24 11:02:54 +01:00
3cd5b1cfb0
Fix warnings for clang
2010-03-22 19:44:45 +01:00
d9291eb4b8
replaced intel compiler option -no-ansi-alias with -fno-strict-aliasing
2010-03-17 10:44:28 +00:00
f5d8c0befc
Daniel Johnson provided fixes for building with the clang compiler
2010-03-05 22:53:30 +00:00
d3e35d49ae
Added a few more compiler warning options for gcc.
2009-06-17 02:26:39 +00:00
065047dc62
Added --enable-curldebug configure option to enable and disable building
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with the low-level curl debug memory tracking 'feature' to allow decoupled
setting from --enable-debug.
2009-06-09 17:59:28 +00:00
f3e6a582d4
remove outdated comment
2009-05-15 09:35:46 +00:00
7a928b40f3
Proper naming for the experimental compiler test and moved to *-compilers.m4
2009-05-07 13:58:15 +00:00
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
f6b55fae79
remove compiler options used while debugging the icc 9.1 optimizer issue
2009-04-17 07:48:37 +00:00
9bb1854398
Set HP-UX compiler warning level back to the one that exposes
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the socklen_t issue on this platform.
2009-04-15 22:54:25 +00:00
c36f0e71b6
attempting to keep lines below 80 chars
2008-11-18 20:13:55 +00:00
820011dedc
Added more compiler warning options for gcc 4.3
2008-11-17 21:11:10 +00:00
d104216bbe
icc adjustments:
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Select ANSI C89 dialect plus GNU extensions, again.
2008-10-25 04:18:48 +00:00
71edaf4d01
some more temporary magic for the icc seg-fault issue
2008-10-24 12:23:24 +00:00
2b77d50776
icc permanent adjustment:
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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
198fa5e3c7
icc adjustments:
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Enable more icc warnings.
Optimization disabling options used only for icc 9.1
2008-10-23 10:04:06 +00:00
b93f4f623c
some more temporary magic for the icc seg-fault issue
2008-10-22 13:30:09 +00:00
db325d1f43
some more temporary magic for the icc seg-fault issue
2008-10-21 17:54:18 +00:00
231a51fe7a
some more temporary magic for the icc seg-fault issue
2008-10-20 15:56:08 +00:00
8d0cbaf8df
messages initially intended only for debug purposes, now become permanent
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since these are extremely useful when compiler rejects a set of options.
2008-10-19 23:50:18 +00:00
07c3aaeea1
fix missing double-quotes
2008-10-17 17:11:11 +00:00
Marcel Raad