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* m4/ctng_python.m4: Fix library checkChris Packham2025-01-231-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | There is subtle difference between our CTNG_PYTHON and the AX_PYTHON on which it is based. The latter uses AC_CHECK_PROGS() which sets PYTHON_BIN to the name of the executable. We use AC_PATH_PROGS() which sets PYTHON_BIN to the full path of the executable. Because the name of the executable is the same as the library AX_PYTHON uses this when looking for the library with AC_CHECK_LIB() which magics itself into a linker flag like `-lpython3.11` but our version ends up with a nonsensical `-l/usr/bin/python3.11` so the check fails and we keep iterating repeating the same wrong check for every tested python version. We can't just switch to using AC_CHECK_PROGS() because we do want to use the variable set by AC_PATH_PROGS() to set the full path in paths.sh. Ultimately we could probably switch to using the upstream AX_PYTHON macro (https://www.gnu.org/software/autoconf-archive/ax_python.html) and figure out a better way of getting the full path of the exectuable but for now add an extra AC_CHECK_PROGS() to set a different variable and use that for AC_CHECK_LIB(). Signed-off-by: Chris Packham <judge.packham@gmail.com>
* m4/ctng_python.m4: Update for python3.13Chris Packham2025-01-231-1/+1
| | | | | | Add python3.13 to the list of possible versions. Signed-off-by: Chris Packham <judge.packham@gmail.com>
* m4/ctng_python.m4: Use AC_PATH_PROGS for full pathChris Packham2023-11-021-1/+1
| | | | | | | | | | | | | | | We use the information from various configure time checks to populate paths.sh. The paths used are all absolute except for the python binary. In the switch to a more comprehensive check for python by commit fa05153e ("Make checking for python more predictable.") we ended up using AC_CHECK_PROGS which checks for the program on the path and sets the variable to the name of the program. This makes python inconsistent with the other programs and seems to cause problems for MSYS2. Use AC_PATH_PROGS instead which does the same check but sets the variable to the absolute name of the program Fixes #2047 Signed-off-by: Chris Packham <judge.packham@gmail.com>
* m4/ctng_python.m4: Fix up URLChris Packham2023-11-021-1/+1
| | | | | | Seems to be the victim of an overzealous search and replace. Signed-off-by: Chris Packham <judge.packham@gmail.com>
* Make checking for python more predictable.Bryan Hundven2023-03-161-0/+111
Signed-off-by: Bryan Hundven <bryanhundven@gmail.com>