Hi, I have the following program test.cpp: #include<iostream> using namespace std; int main(int argc, char* argv[]) { cout << "hello\n"; } And I was trying to compile it with g++ 7.2.0: g++ test.cpp -o test and I got: In file included from /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/include/c++/7.2.0/ext/string_conversions.h:41:0, from /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/include/c++/7.2.0/bits/basic_string.h:6159, from /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/include/c++/7.2.0/string:52, from /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/include/c++/7.2.0/bits/locale_classes.h:40, from /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/include/c++/7.2.0/bits/ios_base.h:41, from /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/include/c++/7.2.0/ios:42, from /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/include/c++/7.2.0/ostream:38, from /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/include/c++/7.2.0/iostream:39, from test.cpp:9: /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/include/c++/7.2.0/cstdlib:75:15: fatal error: stdlib.h: No such file or directory #include_next <stdlib.h> Here’s g++ -v: Reading specs from /home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/bin/../lib/gcc/x86_64-pc-linux-gnu/7.2.0/specs COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=/home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0/bin/../libexec/gcc/x86_64-pc-linux-gnu/7.2.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../configure --with-native-system-header-dir=/home/linuxbrew/.linuxbrew/include --with-local-prefix=/home/linuxbrew/.linuxbrew/local --with-build-time-tools=/home/linuxbrew/.linuxbrew/opt/binutils/x86_64-pc-linux-gnu/bin --prefix=/home/linuxbrew/.linuxbrew/Cellar/gcc/7.2.0 --disable-multilib --enable-languages=c,c++,objc,obj-c++,fortran --program-suffix=-7 --with-gmp=/home/linuxbrew/.linuxbrew/opt/gmp --with-mpfr=/home/linuxbrew/.linuxbrew/opt/mpfr --with-mpc=/home/linuxbrew/.linuxbrew/opt/libmpc --with-isl=/home/linuxbrew/.linuxbrew/opt/isl --with-system-zlib --enable-stage1-checking --enable-checking=release --enable-lto --with-boot-ldflags='-static-libstdc++ -static-libgcc -static -L/home/linuxbrew/.linuxbrew/opt/zlib/lib' Thread model: posix gcc version 7.2.0 (GCC) I’m not sure if I had gcc compiled correctly. Can anyone help here? Thanks, Tim -- Sent from: http://gcc.1065356.n8.nabble.com/gcc-Help-f629689.html