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我遇到了與I'm trying to install psycopg2 onto Mac OS 10.6.3; it claims it can't find "stdarg.h" but I can see it's there; what should I do?（我在OS X 10.7和PostgreSQL v 9.0.5中除外）非常類似的問題，我在考慮更改我的psql配置c編譯器。更改pg_config
當我在終端上鍵入pg_config我得到：
BINDIR = /usr/bin
DOCDIR = /usr/share/doc/postgresql
HTMLDIR = /Library/WebServer/Documents/postgresql
INCLUDEDIR = /usr/include
PKGINCLUDEDIR = /usr/include/postgresql
INCLUDEDIR-SERVER = /usr/include/postgresql/server
LIBDIR = /usr/lib
PKGLIBDIR = /usr/lib/postgresql
LOCALEDIR = /usr/share/locale
MANDIR = /usr/share/man
SHAREDIR = /usr/share/postgresql
SYSCONFDIR = /private/etc/postgresql
PGXS = /usr/lib/postgresql/pgxs/src/makefiles/pgxs.mk
CONFIGURE = '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--disable-dependency-tracking' '--prefix=/usr' '--sbindir=/usr/libexec' '--sysconfdir=/private/etc' '--localstatedir=/var/pgsql' '--htmldir=/Library/WebServer/Documents/postgresql' '--enable-thread-safety' '--enable-dtrace' '--with-tcl' '--with-perl' '--with-python' '--with-gssapi' '--with-krb5' '--with-pam' '--with-ldap' '--with-bonjour' '--with-openssl' '--with-libxml' '--with-libxslt' '--with-system-tzdata=/usr/share/zoneinfo' 'CFLAGS=-arch x86_64 -arch i386 -pipe -Os -g -Wall -Wno-deprecated-declarations' 'LDFLAGS=-arch x86_64 -arch i386 -pipe -Os -g -Wall -Wno-deprecated-declarations' 'LDFLAGS_EX=-mdynamic-no-pic'
CC = gcc
CPPFLAGS = -I/usr/include/libxml2
CFLAGS = -arch x86_64 -arch i386 -pipe -Os -g -Wall -Wno-deprecated-declarations -Wall -Wmissing-prototypes -Wpointer-arith -Wdeclaration-after-statement -Wendif-labels -fno-strict-aliasing -fwrapv
CFLAGS_SL =
LDFLAGS = -arch x86_64 -arch i386 -pipe -Os -g -Wall -Wno-deprecated-declarations -Wl,-dead_strip_dylibs
LDFLAGS_EX = -mdynamic-no-pic
LDFLAGS_SL =
LIBS = -lpgport -lxslt -lxml2 -lpam -lssl -lcrypto -lgssapi_krb5 -lz -lreadline -lm
VERSION = PostgreSQL 9.0.5
我不知道如何改變pg_config（這樣我就可以設置CC = GCC-4.2）或類似的規定。