We have decided to fix the issue by not defining getpwuid for cygwin. That
should fix the error.
Secondly, we will remove the *-pc-cygwin files in config and create a single
cygwin file with the following contents:
# Use the linux-gnulibc1 file.
. $srcdir/config/linux-gnulibc1
I have tested these on both 32/64 cygwin.
The usual tests fail (cache_api, dt_arith, testerror) on 32 and 64 cygwin.
On 64bit cygwin, testhdf5 segfaults, and I have trouble with tools. This is
consistent with my past attempts.
Maybe we need to adjust the actual flag options we use, since they are our
linux selections. At least the config files are actually being used by cygwin.
Allen
On Sunday, May 22, 2016 08:20:53 AM Marco Atzeri wrote:
> 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/hd
> f5-1.8.17=/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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