55 lines
2.2 KiB
Diff
55 lines
2.2 KiB
Diff
python: do not rely only on LIBRARY_PATH for old compilers
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The cross-compilation improvements integrated in Python rely on the
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compiler exposing a line starting with LIBRARY_PATH when called with
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-E -v. This is used by Python setup.py to find the installation
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locations of libraries.
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However, this LIBRARY_PATH line is not shown by very old compilers,
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such as the gcc 4.2.x compiler used on the AVR32 architecture. This
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causes libraries installed in the sysroot, such as libffi, to not be
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detected by the setup.py script.
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To fix this problem, this patch adds addtional logic to setup.py,
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which consists in deriving the library paths from the sysroot
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location, if no LIBRARY_PATH field was found.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Index: b/setup.py
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===================================================================
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--- a/setup.py
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+++ b/setup.py
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@@ -416,6 +416,7 @@
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in_incdirs = False
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inc_dirs = []
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lib_dirs = []
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+ compiler_has_library_path = False
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try:
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if ret >> 8 == 0:
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with open(tmpfile) as fp:
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@@ -427,6 +428,7 @@
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elif line.startswith("End of search list"):
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in_incdirs = False
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elif is_gcc and line.startswith("LIBRARY_PATH"):
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+ compiler_has_library_path = True
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for d in line.strip().split("=")[1].split(":"):
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d = os.path.normpath(d)
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if '/gcc/' not in d:
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@@ -438,6 +440,15 @@
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finally:
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os.unlink(tmpfile)
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+ if not compiler_has_library_path:
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+ ret = os.system("%s -print-file-name=libc.a | sed -r -e 's:(usr/)?lib(32|64)?/([^/]*/)?libc\.a::' >%s" % (gcc, tmpfile))
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+ with open(tmpfile) as fp:
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+ line = fp.readline().strip()
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+ add_dir_to_list(self.compiler.library_dirs,
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+ os.path.join(line, "usr", "lib"))
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+ add_dir_to_list(self.compiler.library_dirs,
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+ os.path.join(line, "lib"))
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+
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def detect_modules(self):
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# Ensure that /usr/local is always used
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if not cross_compiling:
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