macos - 无法使用 Homebrew 软件安装 gcc48

Question

我无法使用 Homebrew 软件安装 gcc48。安装失败
(从配置输出的最后几行开始):

checking for version 0.10 of ISL... no
checking for version 0.11 of ISL... no
configure: error: Unable to find a usable ISL.  See config.log for details.
==> Formula
Tap: homebrew/versions
Path: /usr/local/Library/Taps/homebrew-versions/gcc48.rb
==> Configuration
HOMEBREW_VERSION: 0.9.4
HEAD: e2b10438666f41366f596fe762b2455f5761bcd8
CPU: 8-core 64-bit sandybridge
OS X: 10.8.4-x86_64
Xcode: 4.6.3
CLT: 4.6.0.0.1.1365549073
X11: 2.7.4 => /opt/X11
==> ENV
HOMEBREW_CC: clang
MAKEFLAGS: -j1
CMAKE_PREFIX_PATH: /usr/local
CMAKE_INCLUDE_PATH: /opt/X11/include/freetype2:/usr/include/libxml2:/opt/X11/include
CMAKE_LIBRARY_PATH: /opt/X11/lib
PKG_CONFIG_PATH: /usr/local/opt/isl/lib/pkgconfig:/usr/local/opt/cloog/lib/pkgconfig
PKG_CONFIG_LIBDIR: /usr/lib/pkgconfig:/usr/local/Library/ENV/pkgconfig/10.8:/opt/X11/lib/pkgconfig:/opt/X11/share/pkgconfig
HOMEBREW_MAKE_JOBS: 1
ACLOCAL_PATH: /usr/local/share/aclocal:/opt/X11/share/aclocal
OBJC: cc
PATH: /usr/local/Library/ENV/4.3:/usr/local/opt/cloog/bin:/opt/X11/bin:/usr/bin:/bin:/usr/sbin:/sbin

Error: gcc48 did not build

我确实安装了isl。

: brew info isl
isl: stable 0.12, HEAD
http://www.kotnet.org/~skimo/isl/
/usr/local/Cellar/isl/0.12 (55 files, 3.2M) *
  Built from source
From: https://github.com/mxcl/homebrew/commits/master/Library/Formula/isl.rb
==> Dependencies
Required: gmp

Answer 1

GCC 对 ISL 版本提出了严格的要求。目前 4.8 分支和主干 (4.9) 都需要 ISL 0.10 或 0.11。 Homebrew 暂时将 ISL 恢复到 0.11.2，所以现在应该没问题了。