usr/include/c++/6.4.1/bits/stl_relops.:67: Parse error at "std"

问题描述：

1.编译某qt工程的32位架构二进制包时，出现了上面错误，具体错误信息如下

qmake-qt5 -o ProductLicense/Makefile ProductLicense/ProductLicense.pro CONFIG+=debug
Scanning directory '/builddir/build/BUILD/anaconda-26.48.21/welcome-src/ProductLicense'...
Updating 'productlicense_cn.ts'...
    Found 7 source text(s) (0 new and 7 already existing)
Scanning directory '/builddir/build/BUILD/anaconda-26.48.21/welcome-src/ProductLicense'...
Updating 'productlicense_en.ts'...
    Found 7 source text(s) (0 new and 7 already existing)
Updating 'productlicense_cn.qm'...
    Generated 5 translation(s) (5 finished and 0 unfinished)
    Ignored 2 untranslated source text(s)
Updating 'productlicense_en.qm'...
    Generated 5 translation(s) (5 finished and 0 unfinished)
    Ignored 2 untranslated source text(s)
/usr/bin/make -C ProductLicense
make[3]: Entering directory '/builddir/build/BUILD/anaconda-26.48.21/welcome-src/ProductLicense'
/usr/lib/qt5/bin/uic productlicense.ui -o ui_productlicense.h
g++ -c -pipe -g -Wall -W -D_REENTRANT -fPIC -DQT_DEPRECATED_WARNINGS -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtWidgets -isystem /usr/include/qt5/QtGui -isystem /usr/include/qt5/QtCore -I. -I. -I/usr/lib/qt5/mkspecs/linux-g++ -o main.o main.cpp
/usr/lib/qt5/bin/rcc -name license license.qrc -o qrc_license.cpp
g++ -pipe -g -Wall -W -dM -E -o moc_predefs.h /usr/lib/qt5/mkspecs/features/data/dummy.cpp
g++ -c -pipe -g -Wall -W -D_REENTRANT -fPIC -DQT_DEPRECATED_WARNINGS -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtWidgets -isystem /usr/include/qt5/QtGui -isystem /usr/include/qt5/QtCore -I. -I. -I/usr/lib/qt5/mkspecs/linux-g++ -o productlicense.o productlicense.cpp
/usr/lib/qt5/bin/moc -DQT_DEPRECATED_WARNINGS -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB --include ./moc_predefs.h -I/usr/lib/qt5/mkspecs/linux-g++ -I/builddir/build/BUILD/anaconda-26.48.21/welcome-src/ProductLicense -I/usr/include/qt5 -I/usr/include/qt5/QtWidgets -I/usr/include/qt5/QtGui -I/usr/include/qt5/QtCore -I/usr/include/c++/6.4.1 -I/usr/include/c++/6.4.1/x86_64-redhat-linux -I/usr/include/c++/6.4.1/backward -I/usr/lib/gcc/x86_64-redhat-linux/6.4.1/include -I/usr/local/include -I/usr/include productlicense.h -o moc_productlicense.cpp
g++ -c -pipe -g -Wall -W -D_REENTRANT -fPIC -DQT_DEPRECATED_WARNINGS -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I. -isystem /usr/include/qt5 -isystem /usr/include/qt5/QtWidgets -isystem /usr/include/qt5/QtGui -isystem /usr/include/qt5/QtCore -I. -I. -I/usr/lib/qt5/mkspecs/linux-g++ -o qrc_license.o qrc_license.cpp
welcome.c: In function 'main':
welcome.c:37:45: warning: passing argument 2 of 'g_timeout_add_seconds' from incompatible pointer type [-Wincompatible-pointer-types]
     g_timeout_add_seconds(AUTOEXIT_TIMEOUT, gtk_main_quit, NULL);
                                             ^~~~~~~~~~~~~
In file included from /usr/include/glib-2.0/glib/giochannel.h:33:0,
                 from /usr/include/glib-2.0/glib.h:54,
                 from /usr/include/glib-2.0/gobject/gbinding.h:28,
                 from /usr/include/glib-2.0/glib-object.h:23,
                 from /usr/include/glib-2.0/gio/gioenums.h:28,
                 from /usr/include/glib-2.0/gio/giotypes.h:28,
                 from /usr/include/glib-2.0/gio/gio.h:26,
                 from /usr/include/gtk-2.0/gdk/gdkapplaunchcontext.h:30,
                 from /usr/include/gtk-2.0/gdk/gdk.h:32,
                 from /usr/include/gtk-2.0/gtk/gtk.h:32,
                 from welcome.c:1:
/usr/include/glib-2.0/glib/gmain.h:581:10: note: expected 'GSourceFunc {aka int (*)(void *)}' but argument is of type 'void (*)(void)'
 guint    g_timeout_add_seconds      (guint           interval,
          ^~~~~~~~~~~~~~~~~~~~~
usr/include/c++/6.4.1/bits/stl_relops.:67: Parse error at "std"
Makefile:333: recipe for target 'moc_productlicense.cpp' failed
make[3]: *** [moc_productlicense.cpp] Error 1
make[3]: *** Waiting for unfinished jobs....
make[3]: Leaving directory '/builddir/build/BUILD/anaconda-26.48.21/welcome-src/ProductLicense'
Makefile:6: recipe for target 'system_install' failed
make[2]: Leaving directory '/builddir/build/BUILD/anaconda-26.48.21/welcome-src'
make[2]: *** [system_install] Error 2
Makefile:542: recipe for target 'all-recursive' failed
make[1]: Leaving directory '/builddir/build/BUILD/anaconda-26.48.21'
make[1]: *** [all-recursive] Error 1
Makefile:436: recipe for target 'all' failed

但是编译64位架构的rpm包时并没有报错，网上查询了标题bug相关信息，https://forum.qt.io/topic/56552/solved-pi2-qt5-4-1-std-errors-configure-errors

说是将qt从5.4.1升级到5.4.2即可解决，查看我版本机中32位mock环境的qt版本，发现已经是5.7；

想起该工程的上一次gerrit提交jenkins可以正常编译通过的，包括64位和32架构的二进制包，对比两次提交的文件差异，发现这次提交增加了两个qt相关中间文件，

ProductLicense.pro.user.82c30c7

  .qmake.stash

去除这两个文件后32位mock编译正常，真正原因因时间所限制，后面空了再深究。