From a60bde79f9adeb135d5c642a07f0d783fbfbbc25 Mon Sep 17 00:00:00 2001 From: Daniel Stenberg Date: Thu, 3 Sep 2015 00:04:10 +0200 Subject: has: generate the curl/has.h header changed macro name, moved and renamed script to become docs/libcurl/has.pl, generate code that is checksrc compliant --- include/curl/Makefile.am | 17 ++++-- include/curl/has.pl | 142 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 153 insertions(+), 6 deletions(-) create mode 100755 include/curl/has.pl (limited to 'include') diff --git a/include/curl/Makefile.am b/include/curl/Makefile.am index 86e8b7834..f804bbb24 100644 --- a/include/curl/Makefile.am +++ b/include/curl/Makefile.am @@ -5,7 +5,7 @@ # | (__| |_| | _ <| |___ # \___|\___/|_| \_\_____| # -# Copyright (C) 1998 - 2011, Daniel Stenberg, , et al. +# Copyright (C) 1998 - 2015, Daniel Stenberg, , et al. # # This software is licensed as described in the file COPYING, which # you should have received as part of this distribution. The terms @@ -21,7 +21,7 @@ ########################################################################### pkginclude_HEADERS = \ curl.h curlver.h easy.h mprintf.h stdcheaders.h multi.h \ - typecheck-gcc.h curlbuild.h curlrules.h + typecheck-gcc.h curlbuild.h curlrules.h has.h pkgincludedir= $(includedir)/curl @@ -40,14 +40,19 @@ pkgincludedir= $(includedir)/curl # # curlbuild.h.dist is not included in the source code distribution archive. -EXTRA_DIST = curlbuild.h.in +EXTRA_DIST = curlbuild.h.in has.pl -DISTCLEANFILES = curlbuild.h +DISTCLEANFILES = curlbuild.h has.h + +has.h: $(top_srcdir)/docs/libcurl/symbols-in-versions has.pl + @@PERL@ has.pl < $(top_srcdir)/docs/libcurl/symbols-in-versions > has.h checksrc: - @@PERL@ $(top_srcdir)/lib/checksrc.pl -Wcurlbuild.h -D$(top_srcdir)/include/curl $(pkginclude_HEADERS) $(EXTRA_DIST) + @@PERL@ $(top_srcdir)/lib/checksrc.pl -Wcurlbuild.h -D$(top_srcdir)/include/curl $(pkginclude_HEADERS) curlbuild.h.in if CURLDEBUG # for debug builds, we scan the sources on all regular make invokes -all-local: checksrc +all-local: has.h checksrc +else +all-local: has.h endif diff --git a/include/curl/has.pl b/include/curl/has.pl new file mode 100755 index 000000000..fab6650f8 --- /dev/null +++ b/include/curl/has.pl @@ -0,0 +1,142 @@ +#!/usr/bin/perl +#*************************************************************************** +# _ _ ____ _ +# Project ___| | | | _ \| | +# / __| | | | |_) | | +# | (__| |_| | _ <| |___ +# \___|\___/|_| \_\_____| +# +# Copyright (C) 2011-2015, Daniel Stenberg, , et al. +# +# This software is licensed as described in the file COPYING, which +# you should have received as part of this distribution. The terms +# are also available at http://curl.haxx.se/docs/copyright.html. +# +# You may opt to use, copy, modify, merge, publish, distribute and/or sell +# copies of the Software, and permit persons to whom the Software is +# furnished to do so, under the terms of the COPYING file. +# +# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY +# KIND, either express or implied. +# +########################################################################### +# +# Experience has shown that the symbols-in-versions file is very useful to +# applications that want to build with a wide range of libcurl versions. +# It is however easy to get it wrong and the source gets a bit messy with all +# the fixed numerical comparisons. +# +# The point of this script is to provide an easy-to-use macro for libcurl- +# using applications to do preprocessor checks for specific libcurl defines, +# and yet make the code clearly show what the macro is used for. +# +# Run this script and generate curl/has.h and then use that header in +# a fashion similar to: +# +# #include +# +# #if CURL_HAS(CURLOPT_MUTE) +# has mute +# #else +# no mute +# #endif +# +# + +sub str2num { + my ($str)=@_; + if($str =~ /([0-9]*)\.([0-9]*)\.*([0-9]*)/) { + return sprintf("0x%06x", $1<<16 | $2 << 8 | $3); + } +} + +print <, et al. + * + * This software is licensed as described in the file COPYING, which + * you should have received as part of this distribution. The terms + * are also available at http://curl.haxx.se/docs/copyright.html. + * + * You may opt to use, copy, modify, merge, publish, distribute and/or sell + * copies of the Software, and permit persons to whom the Software is + * furnished to do so, under the terms of the COPYING file. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ***************************************************************************/ +/* + * This file is generated. Do not edit by hand. Edit + * docs/libcurl/symbols-in-versions and regenerate this with has.pl + */ +#include + +/* + * #include + * + * #if CURL_HAS(CURLOPT_MUTE) + * use_mute(); + * #else + * without_mute(); + * #endif + */ +#define CURL_HAS_IN(x,y) \\ + (defined(CURLHAS_ ## x ) && (CURLHAS_ ## x <= y) && \\ + (!defined(CURLHAS_ ## x ## _L) || ( CURLHAS_ ## x ## _L >= y))) + +#define CURL_HAS(x) CURL_HAS_IN(x, LIBCURL_VERSION_NUM) + +EOS + ; + +while() { + if(/^(CURL[^ ]*)[ \t]*(.*)/) { + my ($sym, $vers)=($1, $2); + + my $intr; + my $rm; + my $dep; + + # is there removed info? + if($vers =~ /([\d.]+)[ \t-]+([\d.-]+)[ \t]+([\d.]+)/) { + ($intr, $dep, $rm)=($1, $2, $3); + } + # is it a dep-only line? + elsif($vers =~ /([\d.]+)[ \t-]+([\d.]+)/) { + ($intr, $dep)=($1, $2); + } + else { + $intr = $vers; + } + + my $inum = str2num($intr); + + print <