我已经安装了PGXN Client，但是每次运行时
$ pgxn install pg_repack
make [1]：进入目录'/tmp/tmpniazqt/pg_repack-1.4.4/bin'gcc -Wall -Wmissing-原型-Wpointer-arith -W声明后-Wendif标签-Wmissing-格式属性-Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision = standard -Wno-format-truncation -g -g -O2 -fstack-protector-strong -Wformat -Werror = format-security -fno-omit-frame-pointer -I / usr / include / postgresql -DREPACK_VERSION = 1.4.4 -I。 -I./ -I / usr / include / postgresql / 11 / server -I / usr / include / postgresql / internal -Wdate-time -D_FORTIFY_SOURCE = 2 -D_GNU_SOURCE -I / usr / include / libxml2 -I / usr / include / mit-krb5 -c -o pg_repack.o pg_repack.c gcc -Wall -Wmissing-prototypes -Wpointer-arith -W声明后声明-Wendif标签-Wmissing-格式属性-Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision = standard -Wno-format-truncation -g -g -O -O2 -fstack-protector -strong -Wformat -Werror =格式安全-fno-omit-frame-pointer -I / usr / include / postgresql -DREPACK_VERSION = 1.4.4 -I。 -I./ -I / usr / include / postgresql / 11 / server -I / usr / include / postgresql / internal -Wdate-time -D_FORTIFY_SOURCE = 2 -D_GNU_SOURCE -I / usr / include / libxml2 -I / usr / include / mit-krb5 -c -o pgut / pgut.o pgut / pgut.c gcc -Wall -Wmissing-prototypes -Wpointer-arith -W声明后声明-Wendif标签-Wmissing-格式属性-Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision = standard -Wno-format-truncation -g -g -O -O2 -fstack-protector -strong -Wformat -Werror =格式安全-fno-omit-frame-pointer -I / usr / include / postgresql -DREPACK_VERSION = 1.4.4 -I。 -I./ -I / usr / include / postgresql / 11 / server -I / usr / include / postgresql / internal -Wdate-time -D_FORTIFY_SOURCE = 2 -D_GNU_SOURCE -I / usr / include / libxml2 -I / usr / include / mit-krb5 -c -o pgut / pgut-fe.o pgut / pgut-fe.c gcc -Wall -Wmissing-prototypes -Wpointer-arith -W声明后声明-Wendif标签-Wmissing-格式属性-Wformat-security -fno-strict-aliasing -fwrapv -fexcess-precision = standard -Wno-format-truncation -g -g -O2 -fstack-protector-strong -Wformat -Werror = format-security -fno-omit-frame-pointer pg_repack.o pgut / pgut.o pgut / pgut-fe.o -L / usr / lib / x86_64-linux-gnu- WL，-符号函数-WL，-z，relro -WL，-z，现在-L / usr / lib / llvm-6.0 / lib -L / usr / lib / x86_64-linux-gnu / mit-krb5 -Wl ，-按需-L / usr / lib / x86_64-linux-gnu -lpq -L / usr / lib / postgresql / 11 / lib -lpgcommon -lpgport -lpthread -lssl -lcrypto -lz -lrt -lcrypt -ldl -lm -o pg_repack / usr / bin / ld：找不到-lz collect2：错误：ld返回1退出状态 /usr/lib/postgresql/11/lib/pgxs/src/makefiles/pgxs.mk:430：配方 目标'pg_repack'失败的make [1]： * [pg_repack]错误1的make [1]： 离开目录'/tmp/tmpniazqt/pg_repack-1.4.4/bin'Makefile：35： 目标“全部”的配方制作失败：* [全部]错误2错误：命令 返回2：使PG_CONFIG = / usr / bin / pg_config全部
我还尝试通过下载pg_repack.zip进行安装，但仍然出现相同的错误。
我猜makefile中有一些需要编辑的东西。但我似乎无法指出它是什么。
提前谢谢！