build php-7.0.31 on arm without gcc

[s_graf]

I built php-7.0.31 on armv7 without gcc by modifying Makefile.inc as
follows:

#MODULES+=              gcc4
# for atomic builtins
#MODGCC4_ARCHS+=                arm
#MODGCC4_LANGS+=                c++

Can someone verify that this is appropriate and make it a permanent change.