Hi James,
Hi Bram,
I recently sent a patch for Python3, because it was not possible to
import modules,
if Python3 was installed in /usr/local. I have now extended the patch
for Python2.
Py_Initialize() had come back with a sys.path for /usr instead of
/usr/local.
@James: Py_GetPrefix would come back with /usr just like Py_Initialize().
So the patch calls Py_SetPythonHome() with a path provided by the
configuration script.
This is also used for the configuration test, whether RTLD_GLOBAL is
necessary.
Cheers, Roland
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--- a/src/configure.in Sun Aug 15 15:24:20 2010 +0200
+++ b/src/configure.in Tue Nov 09 22:51:40 2010 +0100
@@ -857,9 +857,9 @@
PYTHON_LIBS="${vi_cv_path_python_plibs}"
if test "${vi_cv_path_python_pfx}" = "${vi_cv_path_python_epfx}"; then
- PYTHON_CFLAGS="-I${vi_cv_path_python_pfx}/include/python${vi_cv_var_python_version}"
+ PYTHON_CFLAGS="-I${vi_cv_path_python_pfx}/include/python${vi_cv_var_python_version} -DPYTHON_PREFIX=L\"${vi_cv_path_python_pfx}\""
else
- PYTHON_CFLAGS="-I${vi_cv_path_python_pfx}/include/python${vi_cv_var_python_version} -I${vi_cv_path_python_epfx}/include/python${vi_cv_var_python_version}"
+ PYTHON_CFLAGS="-I${vi_cv_path_python_pfx}/include/python${vi_cv_var_python_version} -I${vi_cv_path_python_epfx}/include/python${vi_cv_var_python_version} -DPYTHON_PREFIX=L\"${vi_cv_path_python_pfx}\""
fi
PYTHON_SRC="if_python.c"
dnl For Mac OSX 10.2 config.o is included in the Python library.
@@ -871,7 +871,7 @@
if test "${vi_cv_var_python_version}" = "1.4"; then
PYTHON_OBJ="$PYTHON_OBJ objects/py_getpath.o"
fi
- PYTHON_GETPATH_CFLAGS="-DPYTHONPATH='\"${vi_cv_path_pythonpath}\"' -DPREFIX='\"${vi_cv_path_python_pfx}\"' -DEXEC_PREFIX='\"${vi_cv_path_python_epfx}\"'"
+ PYTHON_GETPATH_CFLAGS="-DPYTHONPATH='\"${vi_cv_path_pythonpath}\"' -DPREFIX='\"${vi_cv_path_python_pfx}\"' -DEXEC_PREFIX='\"${vi_cv_path_python_epfx}\"'"
dnl On FreeBSD linking with "-pthread" is required to use threads.
dnl _THREAD_SAFE must be used for compiling then.
@@ -1029,9 +1029,9 @@
PYTHON3_LIBS="${vi_cv_path_python3_plibs}"
if test "${vi_cv_path_python3_pfx}" = "${vi_cv_path_python3_epfx}"; then
- PYTHON3_CFLAGS="-I${vi_cv_path_python3_pfx}/include/python${vi_cv_var_python3_version}"
+ PYTHON3_CFLAGS="-I${vi_cv_path_python3_pfx}/include/python${vi_cv_var_python3_version} -DPYTHON3_PREFIX=L\"${vi_cv_path_python3_pfx}\""
else
- PYTHON3_CFLAGS="-I${vi_cv_path_python3_pfx}/include/python${vi_cv_var_python3_version} -I${vi_cv_path_python3_epfx}/include/python${vi_cv_var_python3_version}"
+ PYTHON3_CFLAGS="-I${vi_cv_path_python3_pfx}/include/python${vi_cv_var_python3_version} -I${vi_cv_path_python3_epfx}/include/python${vi_cv_var_python3_version} -DPYTHON3_PREFIX=L\"${vi_cv_path_python3_pfx}\""
fi
PYTHON3_SRC="if_python3.c"
dnl For Mac OSX 10.2 config.o is included in the Python library.
@@ -1109,28 +1109,32 @@
if test "$python_ok" = yes && test "$python3_ok" = yes; then
AC_DEFINE(DYNAMIC_PYTHON)
AC_DEFINE(DYNAMIC_PYTHON3)
- AC_MSG_CHECKING(whether we can do without RTLD_GLOBAL)
+ AC_MSG_CHECKING(whether we can do without RTLD_GLOBAL for Python)
cflags_save=$CFLAGS
- CFLAGS="$CFLAGS $PYTHON3_CFLAGS"
+ CFLAGS="$CFLAGS $PYTHON_CFLAGS"
ldflags_save=$LDFLAGS
LDFLAGS="$LDFLAGS -ldl"
AC_RUN_IFELSE([
#include <dlfcn.h>
+ #include <string.h>
+ #include <limits.h>
/* If this program fails, then RTLD_GLOBAL is needed.
* RTLD_GLOBAL will be used and then it is not possible to
* have both python versions enabled in the same vim instance.
* Only the first pyhton version used will be switched on.
*/
- int no_rtl_global_needed_for(char *python_instsoname)
+ int no_rtl_global_needed_for(char *python_instsoname, char *prefix)
{
int needed = 0;
void* pylib = dlopen(python_instsoname, RTLD_LAZY);
if (pylib != 0)
{
+ void (*pfx)(char *home) = dlsym(pylib, "Py_SetPythonHome");
void (*init)(void) = dlsym(pylib, "Py_Initialize");
int (*simple)(char*) = dlsym(pylib, "PyRun_SimpleString");
void (*final)(void) = dlsym(pylib, "Py_Finalize");
+ (*pfx)(prefix);
(*init)();
needed = (*simple)("import termios") == -1;
(*final)();
@@ -1142,13 +1146,63 @@
int main(int argc, char** argv)
{
int not_needed = 0;
- if (no_rtl_global_needed_for("libpython2.7.so.1.0") && no_rtl_global_needed_for("libpython3.1.so.1.0"))
+ char *prefix = malloc(PATH_MAX);//malloc because no brackets allowed
+ memset(prefix,0,PATH_MAX);
+ wcstombs(prefix, PYTHON_PREFIX, wcslen(PYTHON_PREFIX) );
+ if (no_rtl_global_needed_for("${python_INSTSONAME}"prefix))
not_needed = 1;
return !not_needed;
}],
[AC_MSG_RESULT(yes);AC_DEFINE(PY_NO_RTLD_GLOBAL)], [AC_MSG_RESULT(no)])
+
CFLAGS=$cflags_save
LDFLAGS=$ldflags_save
+
+ AC_MSG_CHECKING(whether we can do without RTLD_GLOBAL for Python3)
+ cflags_save=$CFLAGS
+ CFLAGS="$CFLAGS $PYTHON3_CFLAGS"
+ ldflags_save=$LDFLAGS
+ LDFLAGS="$LDFLAGS -ldl"
+ AC_RUN_IFELSE([
+ #include <dlfcn.h>
+ #include <wchar.h>
+ /* If this program fails, then RTLD_GLOBAL is needed.
+ * RTLD_GLOBAL will be used and then it is not possible to
+ * have both python versions enabled in the same vim instance.
+ * Only the first pyhton version used will be switched on.
+ */
+
+ int no_rtl_global_needed_for(char *python_instsoname, wchar_t *prefix)
+ {
+ int needed = 0;
+ void* pylib = dlopen(python_instsoname, RTLD_LAZY);
+ if (pylib != 0)
+ {
+ void (*pfx)(wchar_t *home) = dlsym(pylib, "Py_SetPythonHome");
+ void (*init)(void) = dlsym(pylib, "Py_Initialize");
+ int (*simple)(char*) = dlsym(pylib, "PyRun_SimpleString");
+ void (*final)(void) = dlsym(pylib, "Py_Finalize");
+ (*pfx)(prefix);
+ (*init)();
+ needed = (*simple)("import termios") == -1;
+ (*final)();
+ dlclose(pylib);
+ }
+ return !needed;
+ }
+
+ int main(int argc, char** argv)
+ {
+ int not_needed = 0;
+ if (no_rtl_global_needed_for("${python3_INSTSONAME}",PYTHON3_PREFIX))
+ not_needed = 1;
+ return !not_needed;
+ }],
+ [AC_MSG_RESULT(yes);AC_DEFINE(PY3_NO_RTLD_GLOBAL)], [AC_MSG_RESULT(no)])
+
+ CFLAGS=$cflags_save
+ LDFLAGS=$ldflags_save
+
PYTHON_SRC="if_python.c"
PYTHON_OBJ="objects/if_python.o"
PYTHON_CFLAGS="$PYTHON_CFLAGS -DDYNAMIC_PYTHON_DLL=\\\"${python_INSTSONAME}\\\""
diff -r ee53a39d5896 src/if_python.c
--- a/src/if_python.c Sun Aug 15 15:24:20 2010 +0200
+++ b/src/if_python.c Tue Nov 09 22:51:40 2010 +0100
@@ -102,7 +102,7 @@
# include <dlfcn.h>
# define FARPROC void*
# define HINSTANCE void*
-# ifdef PY_NO_RTLD_GLOBAL
+# if defined(PY_NO_RTLD_GLOBAL) && defined(PY3_NO_RTLD_GLOBAL)
# define load_dll(n) dlopen((n), RTLD_LAZY)
# else
# define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
@@ -168,6 +168,7 @@
# define Py_BuildValue dll_Py_BuildValue
# define Py_FindMethod dll_Py_FindMethod
# define Py_InitModule4 dll_Py_InitModule4
+# define Py_SetPythonHome dll_Py_SetPythonHome
# define Py_Initialize dll_Py_Initialize
# define Py_Finalize dll_Py_Finalize
# define Py_IsInitialized dll_Py_IsInitialized
@@ -226,6 +227,7 @@
static PyObject*(*dll_Py_BuildValue)(char *, ...);
static PyObject*(*dll_Py_FindMethod)(struct PyMethodDef[], PyObject *, char *);
static PyObject*(*dll_Py_InitModule4)(char *, struct PyMethodDef *, char *, PyObject *, int);
+static void(*dll_Py_SetPythonHome)(char *home);
static void(*dll_Py_Initialize)(void);
static void(*dll_Py_Finalize)(void);
static int(*dll_Py_IsInitialized)(void);
@@ -310,6 +312,7 @@
# else
{"Py_InitModule4", (PYTHON_PROC*)&dll_Py_InitModule4},
# endif
+ {"Py_SetPythonHome", (PYTHON_PROC*)&dll_Py_SetPythonHome},
{"Py_Initialize", (PYTHON_PROC*)&dll_Py_Initialize},
{"Py_Finalize", (PYTHON_PROC*)&dll_Py_Finalize},
{"Py_IsInitialized", (PYTHON_PROC*)&dll_Py_IsInitialized},
@@ -349,7 +352,7 @@
{
int i;
-#if !defined(PY_NO_RTLD_GLOBAL) && defined(UNIX) && defined(FEAT_PYTHON3)
+#if !(defined(PY_NO_RTLD_GLOBAL) && defined(PY3_NO_RTLD_GLOBAL)) && defined(UNIX) && defined(FEAT_PYTHON3)
/* Can't have Python and Python3 loaded at the same time.
* It cause a crash, because RTLD_GLOBAL is needed for
* standard C extension libraries of one or both python versions. */
@@ -543,6 +546,10 @@
}
#endif
+#ifdef PYTHON_PREFIX
+ Py_SetPythonHome(PYTHON_PREFIX);
+#endif
+
init_structs();
#if !defined(MACOS) || defined(MACOS_X_UNIX)
diff -r ee53a39d5896 src/if_python3.c
--- a/src/if_python3.c Sun Aug 15 15:24:20 2010 +0200
+++ b/src/if_python3.c Tue Nov 09 22:51:40 2010 +0100
@@ -80,7 +80,7 @@
# include <dlfcn.h>
# define FARPROC void*
# define HINSTANCE void*
-# ifdef PY_NO_RTLD_GLOBAL
+# if defined(PY_NO_RTLD_GLOBAL) && defined(PY3_NO_RTLD_GLOBAL)
# define load_dll(n) dlopen((n), RTLD_LAZY)
# else
# define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
@@ -132,6 +132,7 @@
# define PyType_Ready py3_PyType_Ready
#undef Py_BuildValue
# define Py_BuildValue py3_Py_BuildValue
+# define Py_SetPythonHome py3_Py_SetPythonHome
# define Py_Initialize py3_Py_Initialize
# define Py_Finalize py3_Py_Finalize
# define Py_IsInitialized py3_Py_IsInitialized
@@ -170,6 +171,7 @@
* Pointers for dynamic link
*/
static int (*py3_PySys_SetArgv)(int, wchar_t **);
+static void (*py3_Py_SetPythonHome)(wchar_t *home);
static void (*py3_Py_Initialize)(void);
static PyObject* (*py3_PyList_New)(Py_ssize_t size);
static PyGILState_STATE (*py3_PyGILState_Ensure)(void);
@@ -254,6 +256,7 @@
} py3_funcname_table[] =
{
{"PySys_SetArgv", (PYTHON_PROC*)&py3_PySys_SetArgv},
+ {"Py_SetPythonHome", (PYTHON_PROC*)&py3_Py_SetPythonHome},
{"Py_Initialize", (PYTHON_PROC*)&py3_Py_Initialize},
{"PyArg_ParseTuple", (PYTHON_PROC*)&py3_PyArg_ParseTuple},
{"PyList_New", (PYTHON_PROC*)&py3_PyList_New},
@@ -336,7 +339,7 @@
int i;
void *ucs_from_string, *ucs_from_string_and_size;
-# if !defined(PY_NO_RTLD_GLOBAL) && defined(UNIX) && defined(FEAT_PYTHON)
+# if !(defined(PY_NO_RTLD_GLOBAL) && defined(PY3_NO_RTLD_GLOBAL)) && defined(UNIX) && defined(FEAT_PYTHON)
/* Can't have Python and Python3 loaded at the same time.
* It cause a crash, because RTLD_GLOBAL is needed for
* standard C extension libraries of one or both python versions. */
@@ -539,6 +542,11 @@
init_structs();
+
+#ifdef PYTHON3_PREFIX
+ Py_SetPythonHome(PYTHON3_PREFIX);
+#endif
+
/* initialise threads */
PyEval_InitThreads();
