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NEWS: Moved Tiny C Compiler advice to a separate file.
This commit is contained in:
Kalle Olavi Niemitalo
Kalle Olavi Niemitalo
parent
3308e41c31
commit
13d00f8049
6
NEWS
6
NEWS
@ -152,12 +152,6 @@ roughly in decreasing order of importance.
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- (bitrot) Fix compilation under gcc 4.x. Backported from gentoo portage.
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Also, reduce warnings on gcc 4.2 snapshots.
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- (bitrot) Update SpiderMonkey configure check Debian compatibility
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- (experimental, new feature) Tiny C Compiler support, currently
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suffering from many problems. Use --disable-nls to avoid alloca,
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and do not use CFLAGS=-g. Perl, Python, and Ruby provide linker
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options like -export-dynamic that TCC 0.9.23 does not support.
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Using GNU TLS and Guile together can crash TCC (Debian bug 418360).
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SEE 2.0.1131 has a syntax error inside #ifndef __GNUC__.
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- (new feature 779) make uninstall
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- (experimental, new feature) Native Win32 port
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- (enhancement) If make -k was used and a sub-Make fails, build the
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187
doc/tinycc.txt
Normal file
187
doc/tinycc.txt
Normal file
@ -0,0 +1,187 @@
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Compiling ELinks with Tiny C Compiler
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=====================================
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ELinks has been successfully compiled with http://www.tinycc.org/[Tiny
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C Compiler] version 0.9.23, however there are several problems.
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This file lists some of these problems and their possible solutions.
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Perl uses unsupported -Wl,-E
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----------------------------
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----------------------------------------------------------------------
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checking for Perl... no
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----------------------------------------------------------------------
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`config.log` reveals:
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----------------------------------------------------------------------
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configure:18039: checking for Perl
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configure:18082: tcc -o conftest ... -rdynamic conftest.c -Wl,-E ... -lperl ... >&5
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tcc: unsupported linker option '-E'
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configure:18088: $? = 1
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...
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configure:18106: result: no
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----------------------------------------------------------------------
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The `-Wl,-E` option comes from this command:
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----------------------------------------------------------------------
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perl -MExtUtils::Embed -e ldopts
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----------------------------------------------------------------------
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TCC 0.9.23 does not support the option, so ELinks builds without Perl.
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Python uses unsupported -Xlinker -export-dynamic
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------------------------------------------------
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----------------------------------------------------------------------
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checking for Python... yes
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checking for python... /usr/bin/python
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...
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Browser scripting ............... Guile, Lua, SpiderMonkey
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----------------------------------------------------------------------
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`config.log` reveals:
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----------------------------------------------------------------------
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configure:18204: checking for Python
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configure:18208: result: yes
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configure:18219: checking for python
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configure:18237: found /usr/bin/python
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configure:18250: result: /usr/bin/python
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configure:18287: tcc -o conftest ... -rdynamic conftest.c -Xlinker -export-dynamic ... -lpython2.3 ... >&5
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tcc: invalid option -- '-Xlinker'
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configure:18293: $? = 1
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----------------------------------------------------------------------
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The `-Xlinker -export-dynamic` options come from this command:
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----------------------------------------------------------------------
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python -c 'from distutils import sysconfig; print sysconfig.get_config_var("LINKFORSHARED")'
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----------------------------------------------------------------------
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TCC 0.9.23 does not support `-Xlinker`, so ELinks builds without
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Python.
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Ruby uses unsupported -Wl,-export-dynamic
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-----------------------------------------
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----------------------------------------------------------------------
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checking for Ruby... yes
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checking for ruby... /usr/bin/ruby
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checking Ruby version... 1.8.3
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checking for Ruby header files... /usr/lib/ruby/1.8/i486-linux
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configure: error: Ruby not found
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----------------------------------------------------------------------
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`config.log` reveals:
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----------------------------------------------------------------------
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configure:18617: checking for Ruby
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configure:18641: result: yes
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configure:18653: checking for ruby
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configure:18671: found /usr/bin/ruby
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configure:18684: result: /usr/bin/ruby
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configure:18694: checking Ruby version
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configure:18698: result: 1.8.3
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configure:18701: checking for Ruby header files
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configure:18706: result: /usr/lib/ruby/1.8/i486-linux
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configure:18765: tcc -o conftest ... -rdynamic -Wl,-export-dynamic ... conftest.c -lruby1.8 ... >&5
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tcc: unsupported linker option '-export-dynamic'
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configure:18771: $? = 1
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configure:18808: error: Ruby not found
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----------------------------------------------------------------------
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The `-rdynamic -Wl,-export-dynamic` options come from this command:
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----------------------------------------------------------------------
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ruby -r rbconfig -e 'print Config::CONFIG["LDFLAGS"]'
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----------------------------------------------------------------------
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TCC 0.9.23 supports the former but not the latter. To work around the
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error, configure `\--without-ruby`.
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Stabs entry has invalid string index
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------------------------------------
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----------------------------------------------------------------------
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ld -r -o lib.o frames.o parser.o renderer.o tables.o parser/lib.o
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ld: parser/lib.o(.stab+0x2688): Stabs entry has invalid string index.
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parser/lib.o: could not read symbols: Bad value
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----------------------------------------------------------------------
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Apparently, GNU ld 2.16.91 does not like the debug information
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generated by TCC 0.9.23. To work around the error, either set
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`LD=tcc` or remove `-g` from `CFLAGS`.
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Linker segfault
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---------------
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If you configure ELinks with both `\--with-gnutls` and `\--with-guile`,
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TCC 0.9.23 crashes when it's trying to link ELinks.
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http://bugs.debian.org/418360[Debian bug #418360] has a patch that
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fixes this.
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Undefined symbol alloca
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-----------------------
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----------------------------------------------------------------------
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[LINK] src/elinks
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tcc: undefined symbol 'alloca'
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----------------------------------------------------------------------
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GNU libc 2.3.6 declares `alloca()` in `<alloca.h>` but does not
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actually define it as a function, perhaps because the definition must
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be specific to each compiler. TCC 0.9.23 does not define `alloca()`
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either and fails to generate an executable but stupidly exits with
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code 0.
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In ELinks, only `intl/gettext/plural.c` uses `alloca()`, so you can
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avoid the error with `configure --disable-nls`.
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Unexpanded @HAVE_ALLOCA_H@ in <see/type.h>
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------------------------------------------
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----------------------------------------------------------------------
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.../include/see/type.h:180: identifier expected
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----------------------------------------------------------------------
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`<see/type.h>` of
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http://www.adaptive-enterprises.com.au/~d/software/see/[Simple
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ECMAScript Engine] 2.0.1131 has an unexpanded `@HAVE_ALLOCA_H@` inside
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`#ifndef __GNUC__`. Of course, TCC 0.9.23 does not define `__GNUC__`,
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so an error results. To avoid the error, either configure ELinks
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`\--without-see`, or edit `<see/type.h>`.
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Reported as
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http://www.adaptive-enterprises.com.au/bugs/show_bug.cgi?id=65[SEE bug 65].
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Advanced: Compiling SEE with TCC
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--------------------------------
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If you want even more problems, try compiling Simple ECMAScript Engine
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with Tiny C Compiler as well.
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Wrong precedence of sizeof
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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----------------------------------------------------------------------
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.../see-2.0.1131/libsee/unicase.c:86: pointer expected
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----------------------------------------------------------------------
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TCC 0.9.23 misparses `sizeof (a)[0]` used in the `lengthof` macro.
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To work around the bug, change it to `sizeof ((a)[0])`.
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Reported as http://bugs.debian.org/419203[Debian bug #419203].
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Linker option -soname not supported
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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----------------------------------------------------------------------
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tcc: invalid option -- '-soname'
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----------------------------------------------------------------------
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To construct a proper ELF library, the build system of SEE 2.0.1131
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must specify the shared object name. Unfortunately, TCC 0.9.23 does
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not appear to support any such option. So, use some other linker.
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