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debian: disable -flto for binaries

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This work around what appears to be an exception handling bug, causing
binaries to not always catch excepting thrown by the library.

* debian/rules: Here.
This commit is contained in:
Alexandre Duret-Lutz 2015-03-26 07:56:10 +01:00
parent 483212d275
commit 30b8788676
1 changed files with 13 additions and 0 deletions
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13
debian/rules vendored
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@ -41,18 +41,31 @@ PRO2SETUP = \
CXXFLAGS='-flto -fprofile-use' CXXFLAGS='-flto -fprofile-use'
PYSETUP = PYTHON=/usr/bin/python3 PYSETUP = PYTHON=/usr/bin/python3
# There seem to be a problem with unwinding of exception handling when
# the binaries are compiled with -flto. For instance in autfilt,
# argp_parse() calls the locally defined parse_opt() that calls
# remove_ap::add_ap() (in libspot). The latter may throw an
# exception, which should be caught in main(). However If autfilt is
# compiled with -flto, the exception never traverses argp. Moving
# the try/catch block inside parse_opt() also fixes this praticular
# problem, but who knows about other exceptions? So as a workaround,
# we simply disable -flto in src/bin/.
FLTOWORKAROUND = perl -pi -e s/-flto// src/bin/Makefile
# We want to build Spot twice: once to get profile data, and a second # We want to build Spot twice: once to get profile data, and a second
# time to use it. # time to use it.
override_dh_auto_configure: override_dh_auto_configure:
dh_auto_configure -- $(PRO1SETUP) $(LTOSETUP) \ dh_auto_configure -- $(PRO1SETUP) $(LTOSETUP) \
--disable-devel --enable-optimizations \ --disable-devel --enable-optimizations \
--disable-static $(PYSETUP) --disable-static $(PYSETUP)
$(FLTOWORKAROUND)
dh_auto_build dh_auto_build
dh_auto_test dh_auto_test
make clean make clean
dh_auto_configure -- $(PRO2SETUP) $(LTOSETUP) \ dh_auto_configure -- $(PRO2SETUP) $(LTOSETUP) \
--disable-devel --enable-optimizations \ --disable-devel --enable-optimizations \
--disable-static $(PYSETUP) --disable-static $(PYSETUP)
$(FLTOWORKAROUND)
override_dh_auto_install: override_dh_auto_install:
dh_auto_install --destdir=$(CURDIR)/debian/tmp dh_auto_install --destdir=$(CURDIR)/debian/tmp
find debian/tmp -name '*.la' -exec rm -rv {} ';' find debian/tmp -name '*.la' -exec rm -rv {} ';'