Commit Graph

199 Commits

Author SHA1 Message Date
Henry Schreiner
90707b46f2
fix(build): support conan's multiple includes of all files (#3420) 2021-10-27 15:06:02 -04:00
Henry Schreiner
e7e2c79f3f
fix: improve support for Python 3.11-dev (#3368)
* ci: support Python 3.11-dev

Also update 3.10 to final, better PyPy usage

* fix: use PyFrame_GetCode on Python 3.9+

* ci: some bitiness of pypy not supported on win

* chore: update CMake support to 3.22rc1 to quiet warning

* fix: use dev version of py to fix Py 3.11

* tests: print proper Eigen version

* ci: include pypy2, not sure why

* ci: avoid running on Python 3.11 for now

* ci: fix runs

* ci: simpler PyPy usage, drop unmaintained scipy + pypy index

* ci: only binary numpy, wait on pypy 3.8

* refactor: address review
2021-10-26 14:50:34 -04:00
Henry Schreiner
d58699c9ab
fix(cmake): reduce chance for variable collision (#3302) 2021-09-24 17:47:03 -04:00
Wenzel Jakob
409be8336f CMake: react to python version changes
The new FindPython-based variant of the CMake scripts caches information
about the chosen Python version that can become stale. For example,
suppose I configure a simple pybind11-based project as follows

```
cmake -S . -B build -GNinja -DPython_ROOT=<path to python 3.8>
```

which will generate `my_extension.cpython-38-x86_64-linux-gnu.so`.
A subsequent change to the python version like

```
cmake -S . -B build -GNinja -DPython_ROOT=<path to python 3.9>
```

does not update all necessary build system information. In particular,
the compiled file is still called
`my_extension.cpython-38-x86_64-linux-gnu.so`.

This commit fixes the problem by detecting changes in
`Python_EXECUTABLE` and re-running Python as needed.

Note that the previous way of detecting Python does not seem to be
affected, it always specifies the right suffix.
2021-09-24 17:42:06 +02:00
Henry Schreiner
6ad3f874a7
fix(build): avoid a possible warning about shadowed variables and changing behaviors (#3220) 2021-09-23 15:42:16 -04:00
Aaron Gokaslan
9df2f1ff13
maint(precommit): Apply isort (#3195)
* Apply isort

* Tweak isort config

* Add env.py as a known_first_party

* Add one missing known first party

* Make config compat with older isort versions

* Add another comment

* Revert pyproject setting
2021-08-13 12:37:05 -04:00
Ralf W. Grosse-Kunstleve
7d3b05715b
Improved workaround for Centos 8 failure (follow-on to PR #3030). (#3193)
* Rollback of PR #3030 (Working around Centos 8 failure).

* Adding `-DCMAKE_BUILD_TYPE=Release`

* Improving existing workaround (undoing the originally intended rollback).

* Fixing minor documentation bug.
2021-08-12 13:21:49 -07:00
Jerome Robert
9e8a741baa
fix: Mingw64 corrected and add a CI job to test it (#3132)
* mingw64 platform string is like mingw_xxx not "mingw"

See https://github.com/msys2/MINGW-packages/blob/master/mingw-w64-python/0099-Change-the-get_platform-method-in-sysconfig-and-dist.patch

* Mingw: Do not dllexport exceptions

This is a fix for errors like:

D:/a/pybind11/pybind11/include/pybind11/detail/common.h:735:23: error: 'dllexport' implies default visibility, but 'class pybind11::builtin_exception' has already been declared with a different visibility
  735 | class PYBIND11_EXPORT builtin_exception : public std::runtime_error {
      |                       ^~~~~~~~~~~~~~~~~

* GHA: Test Mingw64 build

* fix: avoid thin binaries on mingw

* fix: drop lto on MinGW

* Mingw64: disable PYBIND11_DEPRECATED

It trigger many warnings for unknown reasons

Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com>
2021-07-30 13:48:41 -04:00
Henry Schreiner
7cc0ebb475
fix: the CMake config in Python package had a hard coded path (#3144) 2021-07-27 17:23:52 -04:00
Henry Schreiner
2415c09459
feat(package): support pipx run (#3117) 2021-07-15 15:01:29 -04:00
Aaron Gokaslan
c4b0dc7cdd
Add shellcheck style checking (#3114) 2021-07-14 16:52:13 -04:00
Henry Schreiner
7a64b8adcc
docs: fix script issues for changelog compilation (#3100)
[skip ci]
2021-07-12 14:10:46 -04:00
Ralf W. Grosse-Kunstleve
6d1b197b46
Splitting out pybind11/stl/filesystem.h. (#3077)
* Splitting out pybind11/stl/filesystem.h.

To solve breakages like: https://github.com/deepmind/open_spiel/runs/2999582108

Mostly following the suggestion here: https://github.com/pybind/pybind11/pull/2730#issuecomment-750507575

Except using pybind11/stl/filesystem.h instead of pybind11/stlfs.h, as decided via chat.

stl.h restored to the exact state before merging PR #2730 via:
```
git checkout 733f8de24f stl.h
```

* Properly including new stl subdirectory in pip wheel config.

This now passes interactively:
```
pytest tests/extra_python_package/
```

* iwyu cleanup.

iwyuh.py -c -std=c++17 -DPYBIND11_TEST_BOOST -Ipybind11/include -I/usr/include/python3.9 -I/usr/include/eigen3 include/pybind11/stl/filesystem.h

* Adding PYBIND11_HAS_FILESYSTEM_IS_OPTIONAL.

* Eliminating else after return.
2021-07-08 09:02:48 -07:00
Robert Schütz
d00fc62931
use CMAKE_INSTALL_FULL_INCLUDEDIR (#3005) 2021-06-19 18:45:53 -04:00
Akira Kawata
417fd120cc
Fix: fix typo of WITHOUT_SOABI (#2992) 2021-05-06 00:19:05 -07:00
Weiming Zhao
4f0727f280
Fix the enabling of default extension handling (#2938) 2021-04-05 23:50:50 -04:00
Axel Huebl
c78dfb69f2
MSVC but not Clang: /MP (#2824)
On Windows, clang-cl does not understand /MP.
```
clang-cl: warning: argument unused during compilation: '/MP' [-Wunused-command-line-argument]
```
with Clang 10.0.0
2021-02-08 15:40:04 -05:00
Henry Schreiner
08bca374fd
docs: update changelog, nicer output for script (#2811) 2021-01-21 11:34:39 -05:00
Henry Schreiner
eb83feefff
style: avoid using unintialized variables (#2806)
* style: avoid using unintialized variables

Tested with cmake --warn-unintialized -S . -B build

* refactor: use function for possibly uninit vars
2021-01-19 18:48:22 -05:00
heyer2
76a160070b
fix: STATIC and SHARED flags not being detected (#2796)
* Fix STATIC and SHARED flags not being detected

* fix: use classic naming for all lib types

Co-authored-by: Henry Schreiner <henryschreineriii@gmail.com>
2021-01-14 19:51:41 +01:00
Henry Schreiner
230fa53f16
fix: Don't override global settings for VISIBILITY if set (#2793)
Sometimes programmers want to control this, and while it can be changed after the fact, it's commonly set via a CMAKE_ variable; if that variable is set, we should respect that (like the CMAKE_INTERPROCEDURAL_OPTIMIZATION setting).
2021-01-14 08:31:48 -05:00
Yannick Jadoul
f243450e89
ci: disable builds for 3.10.0a4, and enable a nightly 3.10-dev build (#2792)
* Disable builds for 3.10.0a4, and enable a nightly 3.10-dev build

* Fix job name

* Remove deadsnakes job for now

* Add deadsnakes jobs

* There's no deadsnakes 2.7

* Add 3.10 to versions to be discovered by legacy FindPython, and fix debug input to deadsnakes/action

* Try out branch with fix

* Update to deadsnakes/action@v2.1.1
2021-01-13 23:13:19 -05:00
Henry Schreiner
5bd766bf6c
docs: update changelog and add script to help generate it (#2733) 2020-12-21 21:04:33 -05:00
Henry Schreiner
ffb113d1d8
fix: regression with installed pybind11 overriding local one (#2716)
* fix: regression with installed pybind11 overriding discovered one

Closes #2709

* docs: wording incorrect
2020-12-15 21:55:14 -05:00
Frank
f8b8107b46
fix: make FindPython2 and FindPython3 work (#2662) 2020-11-15 11:55:42 -05:00
Henry Schreiner
3e4d54bc01
fix: match new extension discovery with changes to classic discovery (#2640)
* fix: match new extension discovery with changes to classic discovery

Followup to #2638 - this was fixed in 2.6.0, but only for classic Python

* fix: followup to avoid warnings
2020-11-05 14:37:11 -05:00
Henry Schreiner
b8dc60ec8f
fix: Python include directory was missing from DIRS (#2636) 2020-11-02 20:45:54 -05:00
Henry Schreiner
a42211536b fix: new line in PYPY_VERSION 2020-10-15 17:38:49 -04:00
Henry Schreiner
ad2fe0ee7b fix: pypy3 windows extension issue 2020-10-15 17:38:49 -04:00
Henry Schreiner
645d83813b
feat: typing support for helpers (#2588)
* feat: basic typing support

* docs: mention syncing as suggested by @rwgk

* docs: update changelog

* docs: copy of warning in limitations
2020-10-14 14:08:41 -04:00
Henry Schreiner
a8c2e3eec5
fix: ipo should be off for debug or relwithdebinfo (#2590)
* fix: ipo should be off for debug or relwithdebinfo

Closes #2587

* docs: slightly more detailed about IPO

* Update pybind11Common.cmake
2020-10-14 13:43:31 -04:00
Henry Schreiner
d46f3322a4
fix: allow cmake varibles from Python calls to be cached (#2570) 2020-10-09 17:33:45 -04:00
Henry Schreiner
2a2f52201d
fix: find_import didn't work properly for classic tools (#2550)
* fix: find_import didn't work properly for classic tools

* ci: fix all files not being checked in style run
2020-10-05 15:31:00 -04:00
Henry Schreiner
3488494a81
refactor: import check as a common function (#2526)
* feat: import check as a common function

* docs: add cmake to docs
2020-10-02 22:34:22 -04:00
Henry Schreiner
6d2d08db00
fix: conda-forge patch (#2540) 2020-10-02 09:56:54 -04:00
Wenzel Jakob
3232e59b83
Check if module file extension could be queried correctly (#2538)
On very incomplete python installations (e.g. within Docker), it's
possible that distutils is not installed. In that case, the
``execute_command`` statement that queries distutils for the Python
module extension fails, and pybind11 uses the empty string. This commit
adds an extra check that causes a CMake failure with more actionable
information (just spent a lot of time trying to track down this problem :))
2020-09-30 17:49:11 -04:00
Henry Schreiner
82dbc5b78f
ci: releases (#2530)
* ci: releases

* docs: minor update form @wjakob

* fix: enforce reasonable version of setuptools
2020-09-30 15:48:08 -04:00
Henry Schreiner
e01f492462
fix: Add a nice CMake error when Interpreter component is missing. (#2519)
Closes #2515, found by @rhjdjong
2020-09-21 18:34:48 -04:00
Henry Schreiner
e37921d761
refactor: drop mkdoc and update changelog (#2491)
* refactor: drop mkdoc

* docs: update changelog
2020-09-16 17:14:06 -04:00
Henry Schreiner
fd61f5038e
feat: setup.py redesign and helpers (#2433)
* feat: setup.py redesign and helpers

* refactor: simpler design with two outputs

* refactor: helper file update and Windows support

* fix: review points from @YannickJadoul

* refactor: fixes to naming and more docs

* feat: more customization points

* feat: add entry point pybind11-config

* refactor: Try Extension-focused method

* refactor: rename alt/inplace to global

* fix: allow usage with git modules, better docs

* feat: global as an extra (@YannickJadoul's suggestion)

* feat: single version location

* fix: remove the requirement that setuptools must be imported first

* fix: some review points from @wjacob

* fix: use .in, add procedure to docs

* refactor: avoid monkeypatch copy

* docs: minor typos corrected

* fix: minor points from @YannickJadoul

* fix: typo on Windows C++ mode

* fix: MSVC 15 update 3+ have c++14 flag

See <https://docs.microsoft.com/en-us/cpp/build/reference/std-specify-language-standard-version?view=vs-2019>

* docs: discuss making SDists by hand

* ci: use pep517.build instead of manual setup.py

* refactor: more comments from @YannickJadoul

* docs: updates from @ktbarrett

* fix: change to newly recommended tool instead of pep517.build

This was intended as a proof of concept; build seems to be the correct replacement.

See https://github.com/pypa/pep517/pull/83

* docs: updates from @wjakob

* refactor: dual version locations

* docs: typo spotted by @wjakob
2020-09-16 17:13:41 -04:00
Wenzel Jakob
36c666f027 pybind11_add_module(): OPT_SIZE target 2020-09-06 16:46:38 +02:00
Henry Schreiner
ce1a07ef45
fix: use classic extension handling unless otherwise requested (#2462)
* fix: use classic extension handling unless otherwise requested

* fix: variable must be cached to be used externally
2020-09-04 21:54:09 -04:00
Henry Schreiner
9b8cb02030
fix: respect PYTHON_VERSION if set in classic mode (#2414)
* fix: respect PYTHON_VERSION if set in classic mode

* fix: add warning when using PYTHON_VERSION
2020-08-26 09:07:30 -04:00
Henry Schreiner
c58f7b745b
fix: reduce target collision in add_submodule mode (#2423)
* fix: reduce target collision in add_submodule mode

Closes #2420

* fix: update CMakeLists.txt
2020-08-22 09:06:01 -04:00
Henry Schreiner
56df3c4649
fix: a couple more places where pybind11 is missing 11 (#2421) 2020-08-21 15:27:21 -04:00
Bjorn
d4d7ef5d27
Update pybind11Tools.cmake (#2419)
CPython configured with `--with-pydebug` could not use `pybind11_add_module`
2020-08-21 14:52:38 -04:00
Henry Schreiner
1729aae96f
feat: new FindPython support (#2370)
* feat: FindPython support

* refactor: rename to PYBIND11_FINDPYTHON

* docs: Caps fixes

* feat: NOPYTHON mode

* test: check simple call

* docs: add changelog/upgrade guide

* feat: Support Python3 and Python2

* refactor: Use targets in tests

* fix: support CMake 3.4+

* feat: classic search also finds virtual environments

* docs: some updates from @wjakob's review

* fix: wrong name for QUIET mode variable, reported by @skoslowski

* refactor: cleaner output messaging

* fix: support debug Python's in FindPython mode too

* fixup! refactor: cleaner output messaging

* fix: missing pybind11_FOUND and pybind11_INCLUDE_DIR restored to subdir mode

* fix: nicer reporting of Python / PyPy

* fix: out-of-order variable fix

* docs: minor last-minute cleanup
2020-08-19 12:26:26 -04:00
Henry Schreiner
0af7fe6c19
fix: typo in pybind11_add_module (#2374) 2020-08-08 17:34:38 -04:00
Henry Schreiner
227170dc2f fix: better handling of PYBIND11_CPP_STANDARD 2020-08-06 11:54:41 -04:00
Henry Schreiner
ed6de125c9 format: include .in files 2020-08-06 11:54:41 -04:00
Henry Schreiner
df115977df chore: cleanup 2020-08-06 11:54:41 -04:00
Henry Schreiner
b8047245bb
fix: uninstall cleanup (#2346) 2020-07-31 10:16:40 +02:00
Henry Schreiner
94db5c5ed1 format: apply cmake-format 2020-07-30 20:27:55 -04:00
Henry Schreiner
1b92cd1703 fix: address review points from @YannickJadoul 2020-07-30 20:27:55 -04:00
Henry Schreiner
6ec1775fff feat: drop CMake 3.6 and below, modernize CMake
fix: include PYTHON_IS_DEBUG
2020-07-30 20:27:55 -04:00
Henry Schreiner
1f53c373e4 fix: C++17 mode on Clang may error 2020-07-26 09:25:27 -04:00
tuxmaster5000
7e0a4fb7d0
Fix for #2168 (#2299) 2020-07-24 19:00:48 +02:00
Henry Schreiner
8b0ccf7657 style: adding pre-commit check-style.sh 2020-07-23 19:47:53 -04:00
Liam Keegan
c4fd1fd987
CMake improvement: support windows python on msys (#2312)
- look for windows python lib when using mingw & msys
  - if not found, then look for system python lib as before
2020-07-21 19:17:22 +02:00
Henry Schreiner
d8c7ee00a6
ci: GHA basic format & pre-commit (#2309) 2020-07-20 13:35:21 -04:00
Yannick Jadoul
964ab956e0
Fix DeprecationWarning about 'invalid escape sequence' in tools/docs Python scripts (#2281) 2020-07-10 16:30:44 +02:00
Nils Leif Fischer
141e8cc0af Fix uninitialized-variables cmake warnings 2020-07-01 00:19:25 +02:00
Takahiro Ishikawa
3618807dca Fix python.lib name
pybind11_add_module fails because FindPythonLibsNew.cmake try to link PythonXX.lib, but the first letter "p" should be lowercase.
2020-07-01 00:14:24 +02:00
MRocholl
b14aeb7cfa fix typo in sorted function call argument reverse 2020-04-26 09:29:29 +02:00
MRocholl
9358e30d2a change set_path to set_file 2020-04-26 09:29:29 +02:00
MRocholl
00c462d149 find library path to libclang.so via glob command in /usr/lib/llvm-* and set it 2020-04-26 09:29:29 +02:00
Axel Huebl
6ebfc4b2b0 Document CMAKE_CXX_STANDARD
This variable is a CMake community standard to set the C++
standard of a build. Document it in favor of the previous variable,
which stays as a legacy flag for existing projects.

https://cmake.org/cmake/help/v3.17/variable/CMAKE_CXX_STANDARD.html
2020-04-26 09:17:10 +02:00
Chuck Atkins
d730fbc0d5 Utilize CMake's language standards abstraction when possible 2020-04-26 09:17:10 +02:00
Wenzel Jakob
bb9c91cce8 pybind11Tools.cmake: search for Python 3.9 2020-03-04 16:17:20 +01:00
Baljak
4f72ef846f Fix the use of MSVC in an MSYS environment (#2087) 2020-01-22 11:49:56 +01:00
Baljak
07e2259322 Fix compilation with MinGW only (#2053) 2020-01-05 15:49:59 +01:00
Matthew Dawkins
6f11347a30 Prevent cmake error when prefix empty (#1986) 2019-11-14 08:53:06 +01:00
Axel Huebl
a6355b00f8 CMake: Add Python 3.8 to pybind11Tools (#1974)
Add Python 3.8 to considered versions in CMake for additional
hints.
https://cmake.org/cmake/help/v3.2/module/FindPythonLibs.html
2019-10-31 12:40:15 +01:00
Dmitry
8f5a8ab4ac Don't strip debug symbols in RelWithDebInfo mode (#1892) 2019-08-23 16:18:05 +02:00
Christoph Kahl
640b8fe6d9 fix #1406 add mingw compatibility (#1851) 2019-08-13 21:41:53 +02:00
Lori A. Burns
868d94fcb4 Apply c++ standard flag only to files of CXX language. (#1678) 2019-06-11 22:07:57 +02:00
Dan
41f29ccd9e Parse command-line args in a separate function. 2019-06-11 13:49:37 +02:00
Dan
e0b8bbbce9 Use a file-local constant for non-prefixing nodes. 2019-06-11 13:49:37 +02:00
Dan
2c8c5c4ed3 Split into seperate functions for easier invocation from python. 2019-06-11 13:49:37 +02:00
Dan
590e7acedf Avoid storing global state. 2019-06-11 13:49:37 +02:00
Dan
a163f8813e Delete partially-written file in the event of an error. 2019-06-11 13:49:37 +02:00
Dan
ede328a784 Allow writing output to file instead of stdout. 2019-06-11 13:49:37 +02:00
Dan
a33212df1f Wrap the main functionality of mkdoc in a function. 2019-06-11 13:49:37 +02:00
Dan
b46bb64d39 Allow user to override default values of -x and -std=. 2019-06-11 13:49:37 +02:00
Dan
4612db54ac Try to autodetect the location of the clang standard libraries.
On some linuxes, /usr/include belongs to GCC and the standard
libraries that work with clang are in /usr/lib/clang/8.0.0 or
some variation thereof.

This results in errors such as:

```
/../lib64/gcc/x86_64-pc-linux-gnu/8.3.0/../../../../include/c++/8.3.0/bits/cxxabi_init_exception.h:38:10: fatal error: 'stddef.h' file not found

```

during extraction.
2019-06-11 13:49:37 +02:00
Dan
a175b21e4b Avoid decoding already-decoded strings from cindex.
Recent versions of clang.cindex include [code][1] that converts
the internal byte strings to python str for you.

  [1]: https://github.com/llvm-mirror/clang/blob/master/bindings/python/clang/cindex.py#L72
2019-06-11 13:49:37 +02:00
Jamie Snape
a0b8f70df4 Ensure PythonLibsNew_FOUND is set in FindPythonLibsNew module (#1373)
Since the module is named FindPythonLibsNew, PythonLibsNew_FOUND should be set appropriately.
2019-05-12 19:43:44 +02:00
Rune Paamand
06d021b6e4 Issue #1532: Incompatible config options, /MP vs /Gm for MSVC in DEBUG (#1533)
* Issue #1532: Incompatible config options, /MP vs /Gm for MSVC in DEBUG
2018-10-25 01:35:33 +02:00
Ryota Suzuki
1377fbf73c Fix unintentional escaping of character on Windows (#1574) (#1575) 2018-10-24 11:18:04 +02:00
Davis E. King
9343e68b46 Fix cmake scripts so projects using CUDA .cu files build correctly. (#1441) 2018-09-14 14:28:54 +02:00
Axel Huebl
435dbdd114 add_module: allow include as SYSTEM (#1416)
pybind11 headers passed via the `pybind11_add_module` CMake
function can now be included as `SYSTEM` includes (`-isystem`).

This allows to set stricter (or experimental) warnings in
calling projects that might throw otherwise in headers
a user of pybind11 can not influence.
2018-08-29 13:20:11 +02:00
Axel Huebl
3a94561c4d Debug Builds: -DPy_DEBUG (#1438)
builds against a python debug library were unreliable and
could lead to symbol errors during linking.

Setting the `Py_DEBUG` define is necessary when linking
against a debug build:

https://stackoverflow.com/questions/39161202/how-to-work-around-missing-pymodule-create2-in-amd64-win-python35-d-lib

https://docs.python.org/2/c-api/intro.html#debugging-builds

https://docs.python.org/3.6/c-api/intro.html#debugging-builds
2018-08-29 13:18:43 +02:00
luz.paz
28cb6764fc misc. typos
Found via `codespell`
2018-01-11 16:39:50 -04:00
Unknown
0b3f44ebdf Trivial typos
Non-user facing. 
Found using `codespell -q 3`
2017-11-01 22:48:36 -03:00
Henry Schreiner
43126201a6 Fix style script and add comment to failing blocks (#1045)
[skip appveyor]
2017-09-10 12:24:33 +02:00
Dean Moldovan
76e06c89e4 Avoid duplicate C++ standard flags if CMAKE_CXX_STANDARD is set
CMAKE_CXX_STANDARD is only available on CMake >= 3.1. If the flag is
set, we avoid initializing PYBIND11_CPP_STANDARD.
2017-08-17 03:04:44 +02:00
Jason Rhinelander
97aa54fefa Compile with hidden visibility always; set via cmake property rather than compiler flag
This updates the compilation to always apply hidden visibility to
resolve the issues with default visibility causing problems under debug
compilations.  Moreover using the cmake property makes it easier for a
caller to override if absolutely needed for some reason.

For `pybind11_add_module` we use cmake to set the property; for the
targets, we append to compilation option to non-MSVC compilers.
2017-08-14 11:44:17 -04:00
Dean Moldovan
2e37fe09e1 Fix compatibility of FindPythonLibsNew.cmake and FindPythonLibs.cmake
Make sure `LibsNew` runs correctly if called after the old `Libs`.
2017-07-23 03:32:19 +02:00
Jason Rhinelander
fad5d3386c Detect c++ standard unconditionally
Currently select_cxx_standard(), which sets PYBIND11_CPP_STANDARD when
not externally set, is only called from pybind11_add_module(), but the
embed target setup (which runs unconditionally) makes use of
${PYBIND11_CPP_STANDARD}, which isn't set yet.  This commit removes the
`select_cxx_standard` function completely and just always runs the
standard detection code.

This also tweaks the detection code to not bothering checking for the
`-std=c++11` flag when the `-std=c++14` detection succeeded.
2017-07-16 11:01:00 -04:00
Jason Rhinelander
d080f833be Make check-style.sh work on stock macOS
./tools/check-style.sh fails on stock OS X currently; this fixes it:

- use pipes directly rather than exec redirection (macOS's ancient
  version of bash fails with the latter)
- macOS's ancient bash doesn't support '\e' escapes in `echo -e`;
  replace with \033 instead
- BSD grep doesn't support GREP_COLORS, but does allow GREP_COLOR.
  Adding both doesn't hurt GNU grep: GREP_COLOR is deprecated, and won't
  be used when GREP_COLORS is set.
- BSD grep doesn't collapse multiple /'s in the listed filename, so
  failures under `include/` would should up as
  `include//pybind11/whatever.h`.  This removes the / from the include
  directory argument.

Minor other changes:
- The CRLF detection runs with -l, so GREP_COLORS wasn't doing
  anything; removed it.
- The trailing whitespace test would trigger on CRLFs, but the CR would
  result in messed up output.  Changed the test to just match trailing
  spaces and tabs, rather than all whitespace.
2017-06-14 15:19:42 -04:00