Hi,
building latest 1.8.17 I was surprised that 32 bit (i686)
failed while 64 bit (x86_64) worked flawless as usual.
The problem was triggered by the latest review of system
headers that are now very picky on the "-std=c99"
and causing after a long list of undefined function warnings :
In file included from
/cygdrive/e/cyg_pub/devel/hdf5/prova2/hdf5-1.8.16-1.i686/s
rc/hdf5-1.8.16/src/H5make_libsettings.c:46:0:
/cygdrive/e/cyg_pub/devel/hdf5/prova2/hdf5-1.8.16-1.i686/src/hdf5-1.8.16/src/H5m
ake_libsettings.c:186:30: error: dereferencing pointer to incomplete
type ‘struct passwd’
if((comma = HDstrchr(pwd->pw_gecos, ','))) {
The solution was to remove
config/i686-pc-cygwin
without it all the build is fine and all the tests pass.
Please note that
config/x86_64-pc-cygwin
has been never used as
configure:3753: checking build system type
configure:3767: result: x86_64-unknown-cygwin
so the system was never recognized and the build always worked.
The presence of config/i686-pc-cygwin
is causing an overdefinition of H5_CFLAGS
at least on the cygwin build framework
CFLAGS: -ggdb -O2 -pipe -Wimplicit-function-declaration
-fdebug-prefix-map=/cygdrive/e/cyg_pub/devel/hdf5/prova2/hdf5-1.8.16-1.i686/build=/usr/src/debug/hdf5-1.8.16-1
-fdebug-prefix-map=/cygdrive/e/cyg_pub/devel/hdf5/prova2/hdf5-1.8.16-1.i686/src/hdf5-1.8.16=/usr/src/debug/hdf5-1.8.16-1
H5_CFLAGS: -std=c99 -pedantic -Wall -Wextra -Wundef -Wshad
ow -Wpointer-arith -Wbad-function-cast -Wcast-qual -Wcast-align
-Wwrite-strings-Wconversion -Waggregate-return -Wstrict-prototypes
-Wmissing-prototypes -Wmissing-declarations -Wredundant-decls
-Wnested-externs -Winline -Wfloat-equal -Wmissing-format-attribute
-Wmissing-noreturn -Wpacked -Wdisabled-optimization -Wformat=2
-Wunreachable-code -Wendif-labels -Wdeclaration-after-statement
-Wold-style-definition -Winvalid-pch -Wvariadic-macros -Winit-self
-Wmissing-include-dirs -W
switch-default -Wswitch-enum -Wunused-macros -Wunsafe-loop-optimizations
-Wc++-compat -Wstrict-overflow -Wlogical-op -Wlarger-than=2048 -Wvla
-Wsync-nand -Wframe-larger-than=16384 -Wpacked-bitfield-compat
-Wstrict-overflow=5 -Wjump-misses-init -Wunsuffixed-float-constants
-Wdouble-promotion -Wsuggest-attribute=const -W
trampolines -Wstack-usage=8192 -Wvector-operation-performance
-Wsuggest-attribute=pure -Wsuggest-attribute=noreturn
-Wsuggest-attribute=format -Wdate-time -Wopenmp-simd -Warray-bounds=2
-Wc99-c11-compat -O3 -fstdarg-opt
AM_CFLAGS:
CPPFLAGS:
H5_CPPFLAGS: -DNDEBUG -UH5_DEBUG_API
while without
CFLAGS: -ggdb -O2 -pipe -Wimplicit-function-declaration -fdebug
-prefix-map=/cygdrive/e/cyg_pub/devel/hdf5/hdf5-1.8.17-1.i686/build=/usr/src/debug/hdf5-1.8.17-1
-fdebug-prefix-map=/cygdrive/e/cyg_pub/devel/hdf5/hdf5-1.8.17-1.i686/src/hdf5-1.8.17=/usr/src/debug/hdf5-1.8.17-1
H5_CFLAGS:
AM_CFLAGS:
CPPFLAGS:
H5_CPPFLAGS: -DNDEBUG -UH5_DEBUG_API
Regards
Marco
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