如何解决Windows上的QWT库安装问题
我在Windows 10上安装了qt creator和mingw。一切正常，但编译qwt库（https://qwt.sourceforge.io/）时遇到问题。 Qt和编译器安装在F：/ Qt磁盘上。
Start->Qt->mingw console
F:\qwt-6.1.5>qmake qwt.pro
Info: creating stash file F:\qwt-6.1.5\.qmake.stash
F:\qwt-6.1.5>mingw32-make
cd src/ && ( test -e Makefile || F:/Qt/5.15.0/mingw81_64/bin/qmake.exe -o Makefile F:/qwt-6.1.5/src/src.pro ) && mingw32-make -f Makefile
0 [main] sh 8736 sync_with_child: child 9992(0x1D8) died before initialization with status code 0xC0000142
179 [main] sh 8736 sync_with_child: *** child state waiting for longjmp
/usr/bin/sh: fork: Resource temporarily unavailable
mingw32-make: *** [Makefile:53: sub-src-make_first-ordered] Error 128
F:\Qt\5.15.0\mingw81_32>gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=F:/Qt/Tools/mingw810_32/bin/../libexec/gcc/i686-w64-mingw32/8.1.0/lto-wrapper.exe
Target: i686-w64-mingw32
Configured with: ../../../src/gcc-8.1.0/configure --host=i686-w64-mingw32 --build=i686-w64-mingw32 --target=i686-w64-mingw32 --prefix=/mingw32 --with-sysroot=/c/mingw810/i686-810-posix-dwarf-rt_v6-rev0/mingw32 --enable-shared --enable-static --disable-multilib --enable-languages=c,c++,fortran,lto --enable-libstdcxx-time=yes --enable-threads=posix --enable-libgomp --enable-libatomic --enable-lto --enable-graphite --enable-checking=release --enable-fully-dynamic-string --enable-version-specific-runtime-libs --disable-sjlj-exceptions --with-dwarf2 --disable-libstdcxx-pch --disable-libstdcxx-debug --enable-bootstrap --disable-rpath --disable-win32-registry --disable-nls --disable-werror --disable-symvers --with-gnu-as --with-gnu-ld --with-arch=i686 --with-tune=generic --with-libiconv --with-system-zlib --with-gmp=/c/mingw810/prerequisites/i686-w64-mingw32-static --with-mpfr=/c/mingw810/prerequisites/i686-w64-mingw32-static --with-mpc=/c/mingw810/prerequisites/i686-w64-mingw32-static --with-isl=/c/mingw810/prerequisites/i686-w64-mingw32-static --with-pkgversion='i686-posix-dwarf-rev0,Built by MinGW-W64 project' --with-bugurl=https://sourceforge.net/projects/mingw-w64 CFLAGS='-O2 -pipe -fno-ident -I/c/mingw810/i686-810-posix-dwarf-rt_v6-rev0/mingw32/opt/include -I/c/mingw810/prerequisites/i686-zlib-static/include -I/c/mingw810/prerequisites/i686-w64-mingw32-static/include' CXXFLAGS='-O2 -pipe -fno-ident -I/c/mingw810/i686-810-posix-dwarf-rt_v6-rev0/mingw32/opt/include -I/c/mingw810/prerequisites/i686-zlib-static/include -I/c/mingw810/prerequisites/i686-w64-mingw32-static/include' CPPFLAGS=' -I/c/mingw810/i686-810-posix-dwarf-rt_v6-rev0/mingw32/opt/include -I/c/mingw810/prerequisites/i686-zlib-static/include -I/c/mingw810/prerequisites/i686-w64-mingw32-static/include' LDFLAGS='-pipe -fno-ident -L/c/mingw810/i686-810-posix-dwarf-rt_v6-rev0/mingw32/opt/lib -L/c/mingw810/prerequisites/i686-zlib-static/lib -L/c/mingw810/prerequisites/i686-w64-mingw32-static/lib -Wl,--large-address-aware'
Thread model: posix
gcc version 8.1.0 (i686-posix-dwarf-rev0,Built by MinGW-W64 project)
如何解决？
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