问题
I am getting error in installing PG in Linux (CentOS) System.
gem install pg
Then I'm getting following error
Building native extensions. This could take a while...
ERROR: Error installing pg:
ERROR: Failed to build gem native extension.
current directory: /usr/local/rvm/gems/ruby-2.3.0/gems/pg-0.18.4/ext
/usr/local/rvm/rubies/ruby-2.3.0/bin/ruby -r ./siteconf20160831-5454-1endyls.rb extconf.rb
checking for pg_config... yes
Using config values from /usr/bin/pg_config
checking for libpq-fe.h... no
Can't find the 'libpq-fe.h header
*** 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/local/rvm/rubies/ruby-2.3.0/bin/$(RUBY_BASE_NAME)
--with-pg
--without-pg
--enable-windows-cross
--disable-windows-cross
--with-pg-config
--without-pg-config
--with-pg_config
--without-pg_config
--with-pg-dir
--without-pg-dir
--with-pg-include
--without-pg-include=${pg-dir}/include
--with-pg-lib
--without-pg-lib=${pg-dir}/lib
To see why this extension failed to compile, please check the mkmf.log which can be found here:
/usr/local/rvm/gems/ruby-2.3.0/extensions/x86_64-linux/2.3.0/pg-0.18.4/mkmf.log
extconf failed, exit code 1
Gem files will remain installed in /usr/local/rvm/gems/ruby-2.3.0/gems/pg-0.18.4 for inspection.
Results logged to /usr/local/rvm/gems/ruby-2.3.0/extensions/x86_64-linux/2.3.0/pg-0.18.4/gem_make.out
and for solution I try many things and installed required packages but still getting same error. you can see my logs for postgres*
After run
yum list postgres*
Loaded plugins: priorities, update-motd, upgrade-helper
24 packages excluded due to repository priority protections
Installed Packages
postgresql92.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-contrib.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-devel.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-libs.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-server.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql92-server-compat.x86_64 9.2.15-1.57.amzn1 @amzn-main
postgresql93.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql93-contrib.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql93-devel.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql93-libs.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql93-server.x86_64 9.3.11-1.61.amzn1 @amzn-main
postgresql94.x86_64 9.4.6-1.66.amzn1 @amzn-main
postgresql94-libs.x86_64 9.4.6-1.66.amzn1 @amzn-main
Available Packages
postgresql-jdbc.noarch 8.4.701-8.11.amzn1 amzn-main
postgresql-jdbc-javadoc.noarch 9.4.1208-1.rhel6 pgdg92
postgresql-odbc.x86_64 08.04.0200-1.6.amzn1 amzn-main
postgresql8.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-contrib.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-devel.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-docs.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-libs.i686 8.4.20-5.52.amzn1 amzn-updates
postgresql8-libs.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-plperl.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-plpython.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-pltcl.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-server.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql8-test.x86_64 8.4.20-5.52.amzn1 amzn-updates
postgresql92-debuginfo.x86_64 9.2.18-1PGDG.rhel6 pgdg92
postgresql92-docs.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-libs.i686 9.2.15-1.57.amzn1 amzn-main
postgresql92-odbc.x86_64 09.05.0400-1PGDG.rhel6 pgdg92
postgresql92-plperl.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-plpython.x86_64 9.2.18-1PGDG.rhel6 pgdg92
postgresql92-plpython26.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-plpython27.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-pltcl.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql92-python.x86_64 4.2-1PGDG.rhel6 pgdg92
postgresql92-python-debuginfo.x86_64 4.2-1PGDG.rhel6 pgdg92
postgresql92-tcl.x86_64 2.1.1-1.rhel6 pgdg92
postgresql92-tcl-debuginfo.x86_64 2.1.1-1.rhel6 pgdg92
postgresql92-test.x86_64 9.2.15-1.57.amzn1 amzn-main
postgresql93-docs.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-libs.i686 9.3.11-1.61.amzn1 amzn-main
postgresql93-plperl.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-plpython26.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-plpython27.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-pltcl.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql93-test.x86_64 9.3.11-1.61.amzn1 amzn-main
postgresql94-contrib.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-devel.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-docs.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-libs.i686 9.4.6-1.66.amzn1 amzn-main
postgresql94-plperl.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-plpython26.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-plpython27.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-server.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql94-test.x86_64 9.4.6-1.66.amzn1 amzn-main
postgresql_autodoc.noarch 1.41-1.rhel6 pgdg92
Unable to install pg. Please help me.
I installed
yum install postgresql92-server
Loaded plugins: priorities, update-motd, upgrade-helper
amzn-main/latest | 2.1 kB 00:00
amzn-updates/latest | 2.3 kB 00:00
24 packages excluded due to repository priority protections
Package postgresql92-server-9.2.15-1.57.amzn1.x86_64 already installed and latest version
Nothing to do
回答1:
it seems you have to install postgres header files and libraries. as your system is RHEL try this.
yum install postgresql-devel
if you are using postgres 9.4 then,
yum install postgresql94-devel
then rerun gem install pg 'version'
来源：https://stackoverflow.com/questions/39251264/pg-extconf-failed-exit-code-1-in-linux