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Document how to use --cache configure option.

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This resolves #494.
This commit is contained in:
Jason Evans 2016-11-16 10:56:40 -08:00
parent 4066b4ef57
commit 9b94c015af
1 changed files with 15 additions and 0 deletions
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15
INSTALL
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@ -324,6 +324,21 @@ LDFLAGS="?"
PATH="?"
'configure' uses this to find programs.
In some cases it may be necessary to work around configuration results that do
not match reality. For example, OS X 10.12 in conjunction with XCode 8 adds
the os_unfair_lock_*() API, but if XCode 8 is used to build jemalloc on older
versions of OS X, the configure script will determine that os_unfair_lock_*()
is compilable, yet run-time failures will result. To work around this
(ignoring that MACOSX_DEPLOYMENT_TARGET may be the correct fix), create a cache
file (called e.g. darwin.cache) with the following contents to override the
relevant configuration variable defined in configure.ac:
je_cv_os_unfair_lock=no
Invoke configure as such:
./configure --cache=darwin.cache
=== Advanced compilation =======================================================
To build only parts of jemalloc, use the following targets: