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require 'pp'
require 'mkmf'
if ENV['MAINTAINER_MODE']
$stderr.puts "Maintainer mode enabled."
$CFLAGS <<
' -Wall' <<
' -ggdb' <<
' -DDEBUG' <<
' -pedantic'
end
if pgdir = with_config( 'pg' )
ENV['PATH'] = "#{pgdir}/bin" + File::PATH_SEPARATOR + ENV['PATH']
end
if enable_config("gvl-unlock", true)
$defs.push( "-DENABLE_GVL_UNLOCK" )
$stderr.puts "Calling libpq with GVL unlocked"
else
$stderr.puts "Calling libpq with GVL locked"
end
if enable_config("windows-cross")
# Avoid dependency to external libgcc.dll on x86-mingw32
$LDFLAGS << " -static-libgcc"
# Don't use pg_config for cross build, but --with-pg-* path options
dir_config 'pg'
else
# Native build
pgconfig = with_config('pg-config') ||
with_config('pg_config') ||
find_executable('pg_config')
if pgconfig && pgconfig != 'ignore'
$stderr.puts "Using config values from %s" % [ pgconfig ]
incdir = IO.popen([pgconfig, "--includedir"], &:read).chomp
libdir = IO.popen([pgconfig, "--libdir"], &:read).chomp
dir_config 'pg', incdir, libdir
# Windows traditionally stores DLLs beside executables, not in libdir
dlldir = RUBY_PLATFORM=~/mingw|mswin/ ? IO.popen([pgconfig, "--bindir"], &:read).chomp : libdir
elsif checking_for "libpq per pkg-config" do
_cflags, ldflags, _libs = pkg_config("libpq")
dlldir = ldflags && ldflags[/-L([^ ]+)/] && $1
end
else
incdir, libdir = dir_config 'pg'
dlldir = libdir
end
if /mswin/ =~ RUBY_PLATFORM
$libs = append_library($libs, 'ws2_32')
end
end
$stderr.puts "Using libpq from #{dlldir}"
File.write("postgresql_lib_path.rb", <<-EOT)
module PG
POSTGRESQL_LIB_PATH = #{dlldir.inspect}
end
EOT
$INSTALLFILES = {
"./postgresql_lib_path.rb" => "$(RUBYLIBDIR)/pg/"
}
if RUBY_VERSION >= '2.3.0' && /solaris/ =~ RUBY_PLATFORM
append_cppflags( '-D__EXTENSIONS__' )
end
begin
find_header( 'libpq-fe.h' ) or abort "Can't find the 'libpq-fe.h header"
find_header( 'libpq/libpq-fs.h' ) or abort "Can't find the 'libpq/libpq-fs.h header"
find_header( 'pg_config_manual.h' ) or abort "Can't find the 'pg_config_manual.h' header"
abort "Can't find the PostgreSQL client library (libpq)" unless
have_library( 'pq', 'PQconnectdb', ['libpq-fe.h'] ) ||
have_library( 'libpq', 'PQconnectdb', ['libpq-fe.h'] ) ||
have_library( 'ms/libpq', 'PQconnectdb', ['libpq-fe.h'] )
rescue SystemExit
install_text = case RUBY_PLATFORM
when /linux/
<<-EOT
Please install libpq or postgresql client package like so:
sudo apt install libpq-dev
sudo yum install postgresql-devel
sudo zypper in postgresql-devel
sudo pacman -S postgresql-libs
EOT
when /darwin/
<<-EOT
Please install libpq or postgresql client package like so:
brew install libpq
EOT
when /mingw/
<<-EOT
Please install libpq or postgresql client package like so:
ridk exec sh -c "pacman -S ${MINGW_PACKAGE_PREFIX}-postgresql"
EOT
else
<<-EOT
Please install libpq or postgresql client package.
EOT
end
$stderr.puts <<-EOT
*****************************************************************************
Unable to find PostgreSQL client library.
#{install_text}
or try again with:
gem install pg -- --with-pg-config=/path/to/pg_config
or set library paths manually with:
gem install pg -- --with-pg-include=/path/to/libpq-fe.h/ --with-pg-lib=/path/to/libpq.so/
EOT
raise
end
if /mingw/ =~ RUBY_PLATFORM && RbConfig::MAKEFILE_CONFIG['CC'] =~ /gcc/
# Work around: https://sourceware.org/bugzilla/show_bug.cgi?id=22504
checking_for "workaround gcc version with link issue" do
`#{RbConfig::MAKEFILE_CONFIG['CC']} --version`.chomp =~ /\s(\d+)\.\d+\.\d+(\s|$)/ &&
$1.to_i >= 6 &&
have_library(':libpq.lib') # Prefer linking to libpq.lib over libpq.dll if available
end
end
have_func 'PQconninfo', 'libpq-fe.h' or
abort "Your PostgreSQL is too old. Either install an older version " +
"of this gem or upgrade your database to at least PostgreSQL-9.3."
# optional headers/functions
have_func 'PQsslAttribute', 'libpq-fe.h' # since PostgreSQL-9.5
have_func 'PQresultVerboseErrorMessage', 'libpq-fe.h' # since PostgreSQL-9.6
have_func 'PQencryptPasswordConn', 'libpq-fe.h' # since PostgreSQL-10
have_func 'PQresultMemorySize', 'libpq-fe.h' # since PostgreSQL-12
have_func 'PQenterPipelineMode', 'libpq-fe.h' do |src| # since PostgreSQL-14
# Ensure header files fit as well
src + " int con(){ return PGRES_PIPELINE_SYNC; }"
end
have_func 'timegm'
have_func 'rb_gc_adjust_memory_usage' # since ruby-2.4
have_func 'rb_gc_mark_movable' # since ruby-2.7
have_func 'rb_io_wait' # since ruby-3.0
# unistd.h confilicts with ruby/win32.h when cross compiling for win32 and ruby 1.9.1
have_header 'unistd.h'
have_header 'inttypes.h'
have_header('ruby/fiber/scheduler.h') if RUBY_PLATFORM=~/mingw|mswin/
checking_for "C99 variable length arrays" do
$defs.push( "-DHAVE_VARIABLE_LENGTH_ARRAYS" ) if try_compile('void test_vla(int l){ int vla[l]; }')
end
create_header()
create_makefile( "pg_ext" )
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