Hi Mark,
How did you change gcc compilation options for gem? I found some stuffs on
the internet but it didnt work.
gem install rails --with-cflags=\"-I /usr/include -static-libgcc\"
is this right syntax?
7 Eylül 2013 Cumartesi 05:30:36 UTC+3 tarihinde mark sayer yazdı:
>
> Okay - I've made some progress. mkmf is definitely not picking up
> /usr/include - if I manually compile the conftest.c program adding in
> -I/usr/include it resolves the error. The next error I get is from ld
> unable to find ggc_s - I can overcome this by linking to the static gcc
> using -static-libgcc.
>
> This is the compiler command line I can use to successfully build
> conftest.c adding the above options to the line automagically generated by
> mkmf:
>
> arm-angstrom-linux-gnueabi-gcc -march=armv7-a -mthumb-interwork
> -mfloat-abi=softfp -mfpu=neon -mtune=cortex-a8
> --sysroot=/build/v2012.12/build/tmp-angstrom_v2012_12-eglibc/sysroots/beaglebone
>
> -o conftest -I/usr/include/ruby-1.9.1/arm-linux-eabi
> -I/usr/include/ruby-1.9.1/ruby/backward -I/usr/include/ruby-1.9.1 -I.
> -D_FILE_OFFSET_BITS=64 -I/usr/include/mysql -pipe -g
> -feliminate-unused-debug-types -DUNIV_LINUX -O2 -pipe -g
> -feliminate-unused-debug-types -fPIC conftest.c -L. -L/usr/lib -L. -Wl,-O1
> -Wl,--hash-style=gnu -Wl,--as-needed -rdynamic -Wl,-export-dynamic
> -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed -rdynamic -L/usr/lib
> -lmysqlclient -lz -lcrypt -lnsl -lm -lruby -lpthread -lrt -ldl -lcrypt
> -lm -lc -static-libgcc
>
> The question I have - is how do I configure mkmf to by default use these
> options when building a native gem extension? mkmf.rb is difficult to
> figure out and there deosn't seem to be much documentation around on how to
> configure it.
>
> Regards,
>
> Mark.
>
> On Monday, September 2, 2013 11:13:06 PM UTC+10, mark sayer wrote:
>>
>>
>> Howdy -
>>
>> I'm having problems building native gems. When rubygem tries to make the
>> native extension, I get an error saying string.h is not found.
>>
>> I've compiled a basic C program with string.h to make sure all my default
>> GCC include paths are right and it works fine. But I've tried to build 3
>> gems now (I'm after mysql - but I've also tried json and others) all of
>> which fail during make saying string.h not found.
>>
>> I'm running
>>
>> BeagleBon Black with Angtsrom 2012.12
>> Ruby 1.9.3p194
>> rubygem 1.8.23
>>
>> I've installed the libc and other required development packaged using
>> opkg. As stated I can compile C programs using GCC okay and I have verified
>> string.h is available and basic string io functionality works in compiled C
>> program.s
>>
>> Here's the output from gem install mysql
>>
>> Building native extensions. This could take a while...
>> ERROR: Error installing mysql:
>> ERROR: Failed to build gem native extension.
>> /usr/bin/ruby extconf.rb
>> checking for mysql_ssl_set()... *** extconf.rb failed ***
>> Could not create Makefile due to some reason, probably lack of
>> necessary libraries and/or headers. Check the mkmf.log file for more
>> details. You may need configuration options.
>> Provided configuration options:
>> --with-opt-dir
>> --without-opt-dir
>> --with-opt-include
>> --without-opt-include=${opt-dir}/include
>> --with-opt-lib
>> --without-opt-lib=${opt-dir}/lib
>> --with-make-prog
>> --without-make-prog
>> --srcdir=.
>> --curdir
>> --ruby=/usr/bin/ruby
>> --with-mysql-config
>> --without-mysql-config
>> /usr/lib/ruby/mkmf.rb:381:in `try_do': The compiler failed to generate an
>> executable file. (RuntimeError)
>> You have to install development tools first.
>> from /usr/lib/ruby/mkmf.rb:461:in `try_link0'
>> from /usr/lib/ruby/mkmf.rb:476:in `try_link'
>> from /usr/lib/ruby/mkmf.rb:619:in `try_func'
>> from /usr/lib/ruby/mkmf.rb:894:in `block in have_func'
>> from /usr/lib/ruby/mkmf.rb:790:in `block in checking_for'
>> from /usr/lib/ruby/mkmf.rb:284:in `block (2 levels) in postpone'
>> from /usr/lib/ruby/mkmf.rb:254:in `open'
>> from /usr/lib/ruby/mkmf.rb:284:in `block in postpone'
>> from /usr/lib/ruby/mkmf.rb:254:in `open'
>> from /usr/lib/ruby/mkmf.rb:280:in `postpone'
>> from /usr/lib/ruby/mkmf.rb:789:in `checking_for'
>> from /usr/lib/ruby/mkmf.rb:893:in `have_func'
>> from extconf.rb:45:in `<main>'
>>
>> Gem files will remain installed in
>> /usr/lib/ruby/gems/1.9.1/gems/mysql-2.9.1 for inspection.
>> Results logged to
>> /usr/lib/ruby/gems/1.9.1/gems/mysql-2.9.1/ext/mysql_api/gem_make.out
>>
>> Here's the mkmf.log file from the gem install mysql:
>>
>> "arm-angstrom-linux-gnueabi-gcc -march=armv7-a -mthumb-interwork
>> -mfloat-ab
>> i=softfp -mfpu=neon -mtune=cortex-a8
>> --sysroot=/build/v2012.12/build/tmp-angstro
>> m_v2012_12-eglibc/sysroots/beaglebone -o conftest
>> -I/usr/include/ruby-1.9.1/arm-
>> linux-eabi -I/usr/include/ruby-1.9.1/ruby/backward
>> -I/usr/include/ruby-1.9.1 -I.
>> -D_FILE_OFFSET_BITS=64 -I/usr/include/mysql -pipe -g
>> -feliminate-unused-debu
>> g-types -DUNIV_LINUX -O2 -pipe -g -feliminate-unused-debug-types -fPIC
>> conftes
>> t.c -L. -L/usr/lib -L. -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed
>> -rdynamic -
>> Wl,-export-dynamic -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed
>> -rdynamic -L/
>> usr/lib -lmysqlclient -lz -lcrypt -lnsl -lm -lruby -lpthread -lrt -ldl
>> -lcrypt
>> -lm -lc"
>> In file included from /usr/include/ruby-1.9.1/ruby.h:32:0,
>> from conftest.c:1:
>> /usr/include/ruby-1.9.1/ruby/ruby.h:48:21: fatal error: string.h: No such
>> file o
>> r directory
>> compilation terminated.
>> checked program was:
>> /* begin */
>> 1: #include "ruby.h"
>> 2:
>> 3: int main() {return 0;}
>> /* end */
>>
>> Any ideas why I might be getting this error? Mu assumption is that the
>> compiler flags set by extconf.rb are somehow excluding the paths for
>> dtring.h includes on the agnstrom distro? But I'm lost here - any pointers
>> welcome.
>>
>> Thanks,
>>
>
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