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