当我尝试将 psycopg2 安装到 Mac OS 10.6.3 上时，我遇到了一个非常相似的问题；它声称它找不到“stdarg.h”，但我可以看到它在那里；我该怎么办？（除了我在 OS X 10.7 和 PostgreSQL v 9.0.5 上），我正在考虑更改我的 psql config c-compiler。
当我在终端中键入 pg_config 时，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
我想知道如何更改 pg_config（所以我可以设置 CC = gcc-4.2）或类似的东西。