MacOS: configure: error: C compiler cannot create executables - gcc

Question

I am trying to install opensmile on my Macbookd and encountered the following error:
configure: error: C compiler cannot create executables
I have Xcode 8.2.1 installed. I already tried some answers on similar topics on StackOverflow but nothing helped so far.
/opt/local/bin/port select --list gcc gives me:
Available versions for gcc:
mp-gcc47 (active)
none
Here is the configure.log:
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by openSMILE configure 2.3.0, which was
generated by GNU Autoconf 2.69. Invocation command line was
$ ./configure --without-portaudio --prefix=/Applications/opensmile/inst --enable-static --enable-shared=no
## --------- ##
## Platform. ##
## --------- ##
hostname = Alexanders-MacBook-Pro.local
uname -m = x86_64
uname -r = 16.4.0
uname -s = Darwin
uname -v = Darwin Kernel Version 16.4.0: Thu Dec 22 22:53:21 PST 2016; root:xnu-3789.41.3~3/RELEASE_X86_64
/usr/bin/uname -p = i386
/bin/uname -X = unknown
/bin/arch = unknown
/usr/bin/arch -k = unknown
/usr/convex/getsysinfo = unknown
/usr/bin/hostinfo = Mach kernel version:
Darwin Kernel Version 16.4.0: Thu Dec 22 22:53:21 PST 2016; root:xnu-3789.41.3~3/RELEASE_X86_64
Kernel configured for up to 4 processors.
2 processors are physically available.
4 processors are logically available.
Processor type: x86_64h (Intel x86-64h Haswell)
Processors active: 0 1 2 3
Primary memory available: 8.00 gigabytes
Default processor set: 276 tasks, 1628 threads, 4 processors
Load average: 2.33, Mach factor: 1.72
/bin/machine = unknown
/usr/bin/oslevel = unknown
/bin/universe = unknown
PATH: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin
PATH: /Applications/Xcode.app/Contents/Developer/usr/bin
PATH: /Library/Frameworks/Python.framework/Versions/2.7/bin
PATH: /opt/local/bin
PATH: /opt/local/sbin
PATH: /Library/Frameworks/Python.framework/Versions/2.7/bin
PATH: //anaconda/bin
PATH: /usr/local/bin
PATH: /usr/bin
PATH: /bin
PATH: /usr/sbin
PATH: /sbin
PATH: /opt/X11/bin
PATH: /usr/local/git/bin
PATH: /Library/TeX/texbin
PATH: /Users/Alex/java
## ----------- ##
## Core tests. ##
## ----------- ##
configure:2496: checking for a BSD-compatible install
configure:2564: result: /usr/bin/install -c
configure:2575: checking whether build environment is sane
configure:2630: result: yes
configure:2781: checking for a thread-safe mkdir -p
configure:2820: result: ./install-sh -c -d
configure:2827: checking for gawk
configure:2843: found /usr/local/bin/gawk
configure:2854: result: gawk
configure:2865: checking whether make sets $(MAKE)
configure:2887: result: yes
configure:2916: checking whether make supports nested variables
configure:2933: result: yes
configure:3110: checking for gcc
configure:3137: result: /usr/local/bin/gcc-4.2
configure:3366: checking for C compiler version
configure:3375: /usr/local/bin/gcc-4.2 --version >&5
i686-apple-darwin11-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
couldn't understand kern.osversion `16.4.0'
configure:3386: $? = 0
configure:3375: /usr/local/bin/gcc-4.2 -v >&5
couldn't understand kern.osversion `16.4.0'
Using built-in specs.
Target: i686-apple-darwin11
Configured with: /Volumes/Media/Builds/gcc-5666.3/build/obj/src/configure --disable-checking --prefix=/usr --mandir=/share/man --enable-languages=c,objc,c++,obj-c++,fortran --program-transform-name=/^[cg][^.-]*$/s/$/-4.2/ --with-slibdir=/usr/lib --build=i686-apple-darwin11 --program-prefix=i686-apple-darwin11- --host=x86_64-apple-darwin11 --target=i686-apple-darwin11 --with-gxx-include-dir=/include/c++/4.2.1
Thread model: posix
gcc version 4.2.1 (Apple Inc. build 5666) (dot 3)
configure:3386: $? = 0
configure:3375: /usr/local/bin/gcc-4.2 -V >&5
gcc-4.2: argument to `-V' is missing
configure:3386: $? = 1
configure:3375: /usr/local/bin/gcc-4.2 -qversion >&5
couldn't understand kern.osversion `16.4.0'
i686-apple-darwin11-gcc-4.2.1: no input files
configure:3386: $? = 1
configure:3406: checking whether the C compiler works
configure:3428: /usr/local/bin/gcc-4.2 -O2 -mfpmath=sse -msse2 -D__STATIC_LINK -DOPENSMILE_BUILD -DBUILD_SVMSMO -DBUILD_SVMSMO -DBUILD_LIBSVM -DBUILD_RNN -DBUILD_WITHOUT_EXPERIMENTAL -lrt -lm -lpthread -lc conftest.c >&5
couldn't understand kern.osversion `16.4.0'
ld: library not found for -lrt
collect2: ld returned 1 exit status
configure:3432: $? = 1
configure:3470: result: no
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "openSMILE"
| #define PACKAGE_TARNAME "opensmile"
| #define PACKAGE_VERSION "2.3.0"
| #define PACKAGE_STRING "openSMILE 2.3.0"
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define PACKAGE "opensmile"
| #define VERSION "2.3.0"
| /* end confdefs.h. */
|
| int
| main ()
| {
|
| ;
| return 0;
| }
configure:3475: error: in `/Applications/opensmile':
configure:3477: error: C compiler cannot create executables
See `config.log' for more details
## ---------------- ##
## Cache variables. ##
## ---------------- ##
ac_cv_env_CCC_set=
ac_cv_env_CCC_value=
ac_cv_env_CC_set=set
ac_cv_env_CC_value=/usr/local/bin/gcc-4.2
ac_cv_env_CFLAGS_set=set
ac_cv_env_CFLAGS_value='-O2 -mfpmath=sse -msse2'
ac_cv_env_CPPFLAGS_set=set
ac_cv_env_CPPFLAGS_value='-D__STATIC_LINK -DOPENSMILE_BUILD -DBUILD_SVMSMO -DBUILD_SVMSMO -DBUILD_LIBSVM -DBUILD_RNN -DBUILD_WITHOUT_EXPERIMENTAL'
ac_cv_env_CPP_set=
ac_cv_env_CPP_value=
ac_cv_env_CXXCPP_set=
ac_cv_env_CXXCPP_value=
ac_cv_env_CXXFLAGS_set=set
ac_cv_env_CXXFLAGS_value='-O2 -mfpmath=sse -msse2'
ac_cv_env_CXX_set=
ac_cv_env_CXX_value=
ac_cv_env_LDFLAGS_set=set
ac_cv_env_LDFLAGS_value='-lrt -lm -lpthread -lc'
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_LT_SYS_LIBRARY_PATH_set=
ac_cv_env_LT_SYS_LIBRARY_PATH_value=
ac_cv_env_build_alias_set=
ac_cv_env_build_alias_value=
ac_cv_env_host_alias_set=
ac_cv_env_host_alias_value=
ac_cv_env_target_alias_set=
ac_cv_env_target_alias_value=
ac_cv_path_install='/usr/bin/install -c'
ac_cv_prog_AWK=gawk
ac_cv_prog_ac_ct_CC=/usr/local/bin/gcc-4.2
ac_cv_prog_make_make_set=yes
am_cv_make_support_nested_variables=yes
## ----------------- ##
## Output variables. ##
## ----------------- ##
ACLOCAL='${SHELL} /Applications/opensmile/missing aclocal-1.15'
AMDEPBACKSLASH=''
AMDEP_FALSE=''
AMDEP_TRUE=''
AMTAR='$${TAR-tar}'
AM_BACKSLASH='\'
AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
AM_DEFAULT_VERBOSITY='1'
AM_V='$(V)'
ANDROID_LDFLAGS=''
AR=''
AUTOCONF='${SHELL} /Applications/opensmile/missing autoconf'
AUTOHEADER='${SHELL} /Applications/opensmile/missing autoheader'
AUTOMAKE='${SHELL} /Applications/opensmile/missing automake-1.15'
AWK='gawk'
BUILD_SMILExtract_FALSE=''
BUILD_SMILExtract_TRUE=''
CC='/usr/local/bin/gcc-4.2'
CCDEPMODE=''
CFLAGS='-O2 -mfpmath=sse -msse2'
CPP=''
CPPFLAGS='-D__STATIC_LINK -DOPENSMILE_BUILD -DBUILD_SVMSMO -DBUILD_SVMSMO -DBUILD_LIBSVM -DBUILD_RNN -DBUILD_WITHOUT_EXPERIMENTAL'
CXX=''
CXXCPP=''
CXXDEPMODE=''
CXXFLAGS='-O2 -mfpmath=sse -msse2'
CYGPATH_W='echo'
DEFS=''
DEPDIR=''
DLIB=''
DLLTOOL=''
DSYMUTIL=''
DUMPBIN=''
ECHO_C='\c'
ECHO_N=''
ECHO_T=''
EGREP=''
EXEEXT=''
FGREP=''
GREP=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
INSTALL_STRIP_PROGRAM='$(install_sh) -c -s'
LD=''
LDFLAGS='-lrt -lm -lpthread -lc'
LIBOBJS=''
LIBS=''
LIBTOOL=''
LIPO=''
LN_S=''
LTLIBOBJS=''
LT_SYS_LIBRARY_PATH=''
MAKEINFO='${SHELL} /Applications/opensmile/missing makeinfo'
MANIFEST_TOOL=''
MKDIR_P='./install-sh -c -d'
NM=''
NMEDIT=''
OBJDUMP=''
OBJEXT=''
OPENCV_CPPFLAGS=''
OPENCV_LDFLAGS=''
OPENCV_ROOT=''
OTOOL64=''
OTOOL=''
PACKAGE='opensmile'
PACKAGE_BUGREPORT=''
PACKAGE_NAME='openSMILE'
PACKAGE_STRING='openSMILE 2.3.0'
PACKAGE_TARNAME='opensmile'
PACKAGE_URL=''
PACKAGE_VERSION='2.3.0'
PATH_SEPARATOR=':'
PORTAUDIO_CPPFLAGS=''
PORTAUDIO_LDFLAGS=''
PORTAUDIO_ROOT=''
PTHREAD_CC=''
PTHREAD_CFLAGS=''
PTHREAD_LIBS=''
RANLIB=''
SED=''
SET_MAKE=''
SHELL='/bin/sh'
STRIP=''
VERSION='2.3.0'
ac_ct_AR=''
ac_ct_CC='/usr/local/bin/gcc-4.2'
ac_ct_CXX=''
ac_ct_DUMPBIN=''
acx_pthread_config=''
am__EXEEXT_FALSE=''
am__EXEEXT_TRUE=''
am__fastdepCC_FALSE=''
am__fastdepCC_TRUE=''
am__fastdepCXX_FALSE=''
am__fastdepCXX_TRUE=''
am__include=''
am__isrc=''
am__leading_dot='.'
am__nodep=''
am__quote=''
am__tar='$${TAR-tar} chof - "$$tardir"'
am__untar='$${TAR-tar} xf -'
bindir='${exec_prefix}/bin'
build=''
build_alias=''
build_cpu=''
build_os=''
build_vendor=''
datadir='${datarootdir}'
datarootdir='${prefix}/share'
docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
dvidir='${docdir}'
exec_prefix='NONE'
host=''
host_alias=''
host_cpu=''
host_os=''
host_vendor=''
htmldir='${docdir}'
includedir='${prefix}/include'
infodir='${datarootdir}/info'
install_sh='${SHELL} /Applications/opensmile/install-sh'
libdir='${exec_prefix}/lib'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='${prefix}/var'
mandir='${datarootdir}/man'
mkdir_p='$(MKDIR_P)'
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='/Applications/opensmile/inst'
program_transform_name='s,x,x,'
psdir='${docdir}'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='${prefix}/etc'
target_alias=''
## ----------- ##
## confdefs.h. ##
## ----------- ##
/* confdefs.h */
#define PACKAGE_NAME "openSMILE"
#define PACKAGE_TARNAME "opensmile"
#define PACKAGE_VERSION "2.3.0"
#define PACKAGE_STRING "openSMILE 2.3.0"
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""
#define PACKAGE "opensmile"
#define VERSION "2.3.0"
configure: exit 77

Answer 1

It seems like librt is missing, which doesn't exist on MacOS. It seems openSMILE is currently not officially supported on that platform.
Here is what you need to do to get it to build anyway:
➜ sed -i -e 's/-lrt//' buildStandalone.sh
➜ ./buildStandalone.sh