This may seem trivial and stupid to the experts , but i have been at it
for over 2 weeks and all answers got from forums did not help with
resolving the issue. Even using cygwin didn’t help , i get the same
errors.
I’m working on a windows- rails combination and am trying trying to
setup an existing application which uses a plethora of gems. I’m done
with about a hundred gems , but 3 gems are failing the installations.
I’m listing the gem and the error i recieve below, if anyone has any
solution for hese issues , i’ll be immensely grateful.
gem install rjb
Temporarily enhancing PATH to include DevKit…
Building native extensions. This could take a while…
ERROR: Error installing rjb: ERROR: Failed to build gem native
extension.
C:/RailsInstaller/Ruby1.8.7/bin/ruby.exe extconf.rb
*** 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
…
–ruby=C:/RailsInstaller/Ruby1.8.7/bin/ruby
extconf.rb:45:in `open’: No such file or directory - C:\Program
Files\Java\include (Errno::ENOENT) from extconf.rb:45
gem install ruby-xslt
Temporarily enhancing PATH to include DevKit…
Building native extensions. This could take a while…
ERROR:Error installing ruby-xslt:ERROR:Failed to build gem native
xtension.
C:/RailsInstaller/Ruby1.8.7/bin/ruby.exe extconf.rb
checking for xmlParseDoc() in -lxml2… no
checking for xsltParseStylesheetFile() in -lxslt… no
checking for exsltRegisterAll() in -lexslt… no
*** 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-exsltlib
extconf.rb:57:in ``’: No such file or directory - xml2-config --cflags
(Errno::ENOENT) from extconf.rb:57
gem install system_timer
Temporarily enhancing PATH to include DevKit…
Building native extensions. This could take a while…
ERROR: Error installing system_timer:
ERROR: Failed to build gem native extension.
make
gcc -I. -I/C/RailsInstaller/Ruby1.8.7/lib/ruby/1.8/i386-mingw32
-I/C/RailsInstal
ler/Ruby1.8.7/lib/ruby/1.8/i386-mingw32 -I. -g -O2 -DFD_SETSIZE=256
-c system_timer_native.c
system_timer_native.c: In function
‘install_first_timer_and_save_original_configuration’:
system_timer_native.c:43:22: error: storage size of ‘timer_interval’
isn’t known system_timer_native.c:52:26: error: ‘SIG_BLOCK’ undeclared
(first use in this function)
system_timer_native.c:52:26: note: each undeclared identifier is
reported only once for each function it appears in
system_timer_native.c:63:5: error: invalid use of undefined type ‘struct
sigaction’
system_timer_native.c:64:24: error: ‘SIGALRM’ undeclared (first use in
this function)
system_timer_native.c:81:24: error: ‘ITIMER_REAL’ undeclared (first use
in this function)
system_timer_native.c:95:26: error: ‘SIG_UNBLOCK’ undeclared (first use
in thisfunction)
system_timer_native.c: In function ‘install_next_timer’:
system_timer_native.c:108:22: error: storage size of ‘timer_interval’
isn’t known system_timer_native.c:118:26: error: ‘SIG_BLOCK’ undeclared
(first use in this function)
system_timer_native.c:129:24: error: ‘ITIMER_REAL’ undeclared (first use
in this function)
system_timer_native.c:142:26: error: ‘SIG_UNBLOCK’ undeclared (first use
in this function)
system_timer_native.c: In function ‘restore_original_configuration’:
system_timer_native.c:156:26: error: ‘SIG_BLOCK’ undeclared (first use
in this function)
system_timer_native.c:167:5: error: invalid use of undefined type
‘struct sigaction’
system_timer_native.c:169:31: error: ‘SIGALRM’ undeclared (first use in
this function)
system_timer_native.c:174:5: error: invalid use of undefined type
‘struct sigaction’
system_timer_native.c: In function ‘restore_original_timer_interval’:
system_timer_native.c:189:24: error: ‘ITIMER_REAL’ undeclared (first use
in this function)
system_timer_native.c: In function ‘restore_sigalrm_mask’:
system_timer_native.c:197:37: error: ‘SIGALRM’ undeclared (first use in
this function)
system_timer_native.c:198:21: error: ‘SIG_UNBLOCK’ undeclared (first use
in this function)
system_timer_native.c: In function ‘init_sigalarm_mask’:
system_timer_native.c:272:31: error: ‘SIGALRM’ undeclared (first use in
this function)
system_timer_native.c: In function ‘set_itimerval’:
system_timer_native.c:292:10: error: dereferencing pointer to incomplete
type system_timer_native.c:293:10: error: dereferencing pointer to
incomplete type
system_timer_native.c:294:10: error: dereferencing pointer to incomplete
type
make: *** [system_timer_native.o] Error 1