NM 1.18.1 build fails on PPC64le
See https://build.alpinelinux.org/buildlogs/build-edge-ppc64le/community/networkmanager/networkmanager-1.18.1-r1.log
[154/791] Compiling C object 'libnm/fdede0a@@nm@sha/nm-remote-connection.c.o'.
FAILED: libnm/fdede0a@@nm@sha/nm-remote-connection.c.o
gcc -Ilibnm/fdede0a@@nm@sha -Ilibnm -I../libnm -Ilibnm-core -I../libnm-core -I. -I../ -Ishared -I../shared -I../shared/systemd/sd-adapt-shared -I../shared/systemd/src/basic -Iintrospection -I../introspection -I/usr/include/gio-unix-2.0/ -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/uuid -fdiagnostics-color=always -pipe -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -std=gnu11 -O2 -g -fdata-sections -ffunction-sections -Wdeclaration-after-statement -Wfloat-equal -Wimplicit-fallthrough -Winit-self -Wlogical-op -Wmissing-declarations -Wmissing-include-dirs -Wmissing-prototypes -Wno-duplicate-decl-specifier -Wno-format-truncation -Wno-missing-field-initializers -Wno-pragmas -Wno-sign-compare -Wno-unused-parameter -Wpointer-arith -Wshadow -Wstrict-prototypes -Wundef -fno-strict-aliasing -Os -fomit-frame-pointer -Os -fomit-frame-pointer -fPIC -pthread -DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_40 -DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_40 '-DG_LOG_DOMAIN="libnm"' -DNETWORKMANAGER_COMPILATION=NM_NETWORKMANAGER_COMPILATION_LIBNM -MD -MQ 'libnm/fdede0a@@nm@sha/nm-remote-connection.c.o' -MF 'libnm/fdede0a@@nm@sha/nm-remote-connection.c.o.d' -o 'libnm/fdede0a@@nm@sha/nm-remote-connection.c.o' -c ../libnm/nm-remote-connection.c
../libnm/nm-remote-connection.c:34:10: fatal error: introspection/org.freedesktop.NetworkManager.Settings.Connection.h: No such file or directory
#include "introspection/org.freedesktop.NetworkManager.Settings.Connection.h"
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
[155/791] Compiling C object 'libnm/fdede0a@@nm@sha/nm-secret-agent-old.c.o'.
FAILED: libnm/fdede0a@@nm@sha/nm-secret-agent-old.c.o
gcc -Ilibnm/fdede0a@@nm@sha -Ilibnm -I../libnm -Ilibnm-core -I../libnm-core -I. -I../ -Ishared -I../shared -I../shared/systemd/sd-adapt-shared -I../shared/systemd/src/basic -Iintrospection -I../introspection -I/usr/include/gio-unix-2.0/ -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/uuid -fdiagnostics-color=always -pipe -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -std=gnu11 -O2 -g -fdata-sections -ffunction-sections -Wdeclaration-after-statement -Wfloat-equal -Wimplicit-fallthrough -Winit-self -Wlogical-op -Wmissing-declarations -Wmissing-include-dirs -Wmissing-prototypes -Wno-duplicate-decl-specifier -Wno-format-truncation -Wno-missing-field-initializers -Wno-pragmas -Wno-sign-compare -Wno-unused-parameter -Wpointer-arith -Wshadow -Wstrict-prototypes -Wundef -fno-strict-aliasing -Os -fomit-frame-pointer -Os -fomit-frame-pointer -fPIC -pthread -DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_40 -DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_40 '-DG_LOG_DOMAIN="libnm"' -DNETWORKMANAGER_COMPILATION=NM_NETWORKMANAGER_COMPILATION_LIBNM -MD -MQ 'libnm/fdede0a@@nm@sha/nm-secret-agent-old.c.o' -MF 'libnm/fdede0a@@nm@sha/nm-secret-agent-old.c.o.d' -o 'libnm/fdede0a@@nm@sha/nm-secret-agent-old.c.o' -c ../libnm/nm-secret-agent-old.c
../libnm/nm-secret-agent-old.c:32:10: fatal error: introspection/org.freedesktop.NetworkManager.SecretAgent.h: No such file or directory
#include "introspection/org.freedesktop.NetworkManager.SecretAgent.h"
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
[156/791] Compiling C object 'libnm/fdede0a@@nm@sha/nm-remote-settings.c.o'.
FAILED: libnm/fdede0a@@nm@sha/nm-remote-settings.c.o
gcc -Ilibnm/fdede0a@@nm@sha -Ilibnm -I../libnm -Ilibnm-core -I../libnm-core -I. -I../ -Ishared -I../shared -I../shared/systemd/sd-adapt-shared -I../shared/systemd/src/basic -Iintrospection -I../introspection -I/usr/include/gio-unix-2.0/ -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -I/usr/include/uuid -fdiagnostics-color=always -pipe -D_FILE_OFFSET_BITS=64 -Wall -Winvalid-pch -std=gnu11 -O2 -g -fdata-sections -ffunction-sections -Wdeclaration-after-statement -Wfloat-equal -Wimplicit-fallthrough -Winit-self -Wlogical-op -Wmissing-declarations -Wmissing-include-dirs -Wmissing-prototypes -Wno-duplicate-decl-specifier -Wno-format-truncation -Wno-missing-field-initializers -Wno-pragmas -Wno-sign-compare -Wno-unused-parameter -Wpointer-arith -Wshadow -Wstrict-prototypes -Wundef -fno-strict-aliasing -Os -fomit-frame-pointer -Os -fomit-frame-pointer -fPIC -pthread -DGLIB_VERSION_MIN_REQUIRED=GLIB_VERSION_2_40 -DGLIB_VERSION_MAX_ALLOWED=GLIB_VERSION_2_40 '-DG_LOG_DOMAIN="libnm"' -DNETWORKMANAGER_COMPILATION=NM_NETWORKMANAGER_COMPILATION_LIBNM -MD -MQ 'libnm/fdede0a@@nm@sha/nm-remote-settings.c.o' -MF 'libnm/fdede0a@@nm@sha/nm-remote-settings.c.o.d' -o 'libnm/fdede0a@@nm@sha/nm-remote-settings.c.o' -c ../libnm/nm-remote-settings.c
../libnm/nm-remote-settings.c:35:10: fatal error: introspection/org.freedesktop.NetworkManager.Settings.h: No such file or directory
#include "introspection/org.freedesktop.NetworkManager.Settings.h"
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~