Target make file contains syntax which is not interpreted correctly on AIX

gyp info it worked if it ends with ok
gyp verb cli [
gyp verb cli '/home/user/user1/node-v18.20.5-aix-ppc64/bin/node',
gyp verb cli '/tmp/custom_package/node_modules/.bin/node-gyp',
gyp verb cli 'rebuild',
gyp verb cli '--verbose',
gyp verb cli '--target=v18.20.5',
gyp verb cli '--release',
gyp verb cli '--msvs_version=2019',
gyp verb cli '--buildfolder=Release',
gyp verb cli '--linux_variant=undefined',
gyp verb cli '--v8_enable_pointer_compression=false',
gyp verb cli '--v8_enable_31bit_smis_on_64bit_arch=false',
gyp verb cli '--build_v8_with_gn=false',
gyp verb cli '--enable_lto=false'
gyp verb cli ]
gyp info using node-gyp@10.2.0
gyp info using node@18.20.5 | aix | ppc64
gyp verb clean removing "build" directory
gyp verb find Python Python is not set from command line or npm configuration
gyp verb find Python Python is not set from environment variable PYTHON
gyp verb find Python checking if "python3" can be used
gyp verb find Python - executing "python3" to get executable path
gyp verb find Python - executable path is "/usr/bin/python3"
gyp verb find Python - executing "/usr/bin/python3" to get version
gyp verb find Python - version is "3.9.6"
gyp info find Python using Python version 3.9.6 found at "/usr/bin/python3"
gyp verb get node dir no --target version specified, falling back to host node version: 18.20.5

gyp verb install input version string "18.20.5"
gyp verb install installing version: 18.20.5
gyp verb install --ensure was passed, so won't reinstall if already installed
gyp verb install version is already installed, need to check "installVersion"
gyp verb got "installVersion" 11
gyp verb needs "installVersion" 11
gyp verb install version is good
gyp verb get node dir target node version installed: 18.20.5
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g++ -shared -Wl ........
/bin/sh: syntax error at line 1 : `(' unexpected
gmake: Leaving directory '/tmp/custom_package/nodejs/src/custom_package/node_modules/custom_package-napi/build'
gmake: *** [custom_package.target.mk:279: Release/obj.target/custom_package.node] Error 2
gyp ERR! build error
gyp ERR! stack Error: `gmake` failed with exit code: 2

The line 279 is " $(call do_cmd,solink_module)" in the generated make file

A few lines above it are:

$(obj).target/custom_module.node: GYP_LDFLAGS := $(LDFLAGS_$(BUILDTYPE))
$(obj).target/custom_module.node: LIBS := $(LIBS)
$(obj).target/custom_module.node: TOOLSET := $(TOOLSET)
$(obj).target/custom_module.node: $(OBJS) FORCE_DO_CMD
        $(call do_cmd,solink_module)

NOTE: This works on all the other platforms linux / windows on pc, amd, arm, mac, graviton. It complains specifically for AIX.