Diff of the two buildlogs: -- --- b1/build.log 2024-12-24 07:00:13.050090439 +0000 +++ b2/build.log 2024-12-24 07:03:42.940503095 +0000 @@ -1,6 +1,6 @@ I: pbuilder: network access will be disabled during build -I: Current time: Mon Dec 23 18:57:13 -12 2024 -I: pbuilder-time-stamp: 1735023433 +I: Current time: Tue Dec 24 21:00:16 +14 2024 +I: pbuilder-time-stamp: 1735023616 I: Building the build Environment I: extracting base tarball [/var/cache/pbuilder/unstable-reproducible-base.tgz] I: copying local configuration @@ -27,52 +27,84 @@ dpkg-source: info: applying no_copy_binary.patch I: Not using root during the build. I: Installing the build-deps -I: user script /srv/workspace/pbuilder/3042706/tmp/hooks/D02_print_environment starting +I: user script /srv/workspace/pbuilder/1947240/tmp/hooks/D01_modify_environment starting +debug: Running on codethink02-arm64. +I: Changing host+domainname to test build reproducibility +I: Adding a custom variable just for the fun of it... +I: Changing /bin/sh to bash +'/bin/sh' -> '/bin/bash' +lrwxrwxrwx 1 root root 9 Dec 24 07:00 /bin/sh -> /bin/bash +I: Setting pbuilder2's login shell to /bin/bash +I: Setting pbuilder2's GECOS to second user,second room,second work-phone,second home-phone,second other +I: user script /srv/workspace/pbuilder/1947240/tmp/hooks/D01_modify_environment finished +I: user script /srv/workspace/pbuilder/1947240/tmp/hooks/D02_print_environment starting I: set - BUILDDIR='/build/reproducible-path' - BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other' - BUILDUSERNAME='pbuilder1' - BUILD_ARCH='arm64' - DEBIAN_FRONTEND='noninteractive' + BASH=/bin/sh + BASHOPTS=checkwinsize:cmdhist:complete_fullquote:extquote:force_fignore:globasciiranges:globskipdots:hostcomplete:interactive_comments:patsub_replacement:progcomp:promptvars:sourcepath + BASH_ALIASES=() + BASH_ARGC=() + BASH_ARGV=() + BASH_CMDS=() + BASH_LINENO=([0]="12" [1]="0") + BASH_LOADABLES_PATH=/usr/local/lib/bash:/usr/lib/bash:/opt/local/lib/bash:/usr/pkg/lib/bash:/opt/pkg/lib/bash:. + BASH_SOURCE=([0]="/tmp/hooks/D02_print_environment" [1]="/tmp/hooks/D02_print_environment") + BASH_VERSINFO=([0]="5" [1]="2" [2]="37" [3]="1" [4]="release" [5]="aarch64-unknown-linux-gnu") + BASH_VERSION='5.2.37(1)-release' + BUILDDIR=/build/reproducible-path + BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other' + BUILDUSERNAME=pbuilder2 + BUILD_ARCH=arm64 + DEBIAN_FRONTEND=noninteractive DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=12 ' - DISTRIBUTION='unstable' - HOME='/root' - HOST_ARCH='arm64' + DIRSTACK=() + DISTRIBUTION=unstable + EUID=0 + FUNCNAME=([0]="Echo" [1]="main") + GROUPS=() + HOME=/root + HOSTNAME=i-capture-the-hostname + HOSTTYPE=aarch64 + HOST_ARCH=arm64 IFS=' ' - INVOCATION_ID='891a33b2192b436190d71d6925b15f73' - LANG='C' - LANGUAGE='en_US:en' - LC_ALL='C' - MAIL='/var/mail/root' - OPTIND='1' - PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games' - PBCURRENTCOMMANDLINEOPERATION='build' - PBUILDER_OPERATION='build' - PBUILDER_PKGDATADIR='/usr/share/pbuilder' - PBUILDER_PKGLIBDIR='/usr/lib/pbuilder' - PBUILDER_SYSCONFDIR='/etc' - PPID='3042706' - PS1='# ' - PS2='> ' + INVOCATION_ID=acd4d766a7bd43208b736d86d9f896fb + LANG=C + LANGUAGE=nl_BE:nl + LC_ALL=C + MACHTYPE=aarch64-unknown-linux-gnu + MAIL=/var/mail/root + OPTERR=1 + OPTIND=1 + OSTYPE=linux-gnu + PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path + PBCURRENTCOMMANDLINEOPERATION=build + PBUILDER_OPERATION=build + PBUILDER_PKGDATADIR=/usr/share/pbuilder + PBUILDER_PKGLIBDIR=/usr/lib/pbuilder + PBUILDER_SYSCONFDIR=/etc + PIPESTATUS=([0]="0") + POSIXLY_CORRECT=y + PPID=1947240 PS4='+ ' - PWD='/' - SHELL='/bin/bash' - SHLVL='2' - SUDO_COMMAND='/usr/bin/timeout -k 18.1h 18h /usr/bin/ionice -c 3 /usr/bin/nice /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.D3MXxcFK/pbuilderrc_sPQh --distribution unstable --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.D3MXxcFK/b1 --logfile b1/build.log wp2latex_4.12~ds-1.dsc' - SUDO_GID='109' - SUDO_UID='104' - SUDO_USER='jenkins' - TERM='unknown' - TZ='/usr/share/zoneinfo/Etc/GMT+12' - USER='root' - _='/usr/bin/systemd-run' - http_proxy='http://192.168.101.4:3128' + PWD=/ + SHELL=/bin/bash + SHELLOPTS=braceexpand:errexit:hashall:interactive-comments:posix + SHLVL=3 + SUDO_COMMAND='/usr/bin/timeout -k 24.1h 24h /usr/bin/ionice -c 3 /usr/bin/nice -n 11 /usr/bin/unshare --uts -- /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.D3MXxcFK/pbuilderrc_KRKd --distribution unstable --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/unstable-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.D3MXxcFK/b2 --logfile b2/build.log wp2latex_4.12~ds-1.dsc' + SUDO_GID=109 + SUDO_UID=104 + SUDO_USER=jenkins + TERM=unknown + TZ=/usr/share/zoneinfo/Etc/GMT-14 + UID=0 + USER=root + _='I: set' + http_proxy=http://192.168.101.4:3128 I: uname -a - Linux codethink04-arm64 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux + Linux i-capture-the-hostname 6.1.0-28-cloud-arm64 #1 SMP Debian 6.1.119-1 (2024-11-22) aarch64 GNU/Linux I: ls -l /bin lrwxrwxrwx 1 root root 7 Nov 22 14:40 /bin -> usr/bin -I: user script /srv/workspace/pbuilder/3042706/tmp/hooks/D02_print_environment finished +I: user script /srv/workspace/pbuilder/1947240/tmp/hooks/D02_print_environment finished -> Attempting to satisfy build-dependencies -> Creating pbuilder-satisfydepends-dummy package Package: pbuilder-satisfydepends-dummy @@ -280,7 +312,7 @@ Get: 150 http://deb.debian.org/debian unstable/main arm64 texlive-latex-recommended all 2024.20241115-1 [8757 kB] Get: 151 http://deb.debian.org/debian unstable/main arm64 texlive-pictures all 2024.20241115-1 [17.0 MB] Get: 152 http://deb.debian.org/debian unstable/main arm64 texlive-latex-extra all 2024.20241115-1 [24.6 MB] -Fetched 664 MB in 5s (123 MB/s) +Fetched 664 MB in 6s (108 MB/s) Preconfiguring packages ... Selecting previously unselected package libpython3.12-minimal:arm64. (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 20097 files and directories currently installed.) @@ -792,8 +824,8 @@ Setting up tzdata (2024b-4) ... Current default time zone: 'Etc/UTC' -Local time is now: Tue Dec 24 06:58:02 UTC 2024. -Universal Time is now: Tue Dec 24 06:58:02 UTC 2024. +Local time is now: Tue Dec 24 07:01:07 UTC 2024. +Universal Time is now: Tue Dec 24 07:01:07 UTC 2024. Run 'dpkg-reconfigure tzdata' if you wish to change it. Setting up fonts-tlwg-typewriter-otf (1:0.7.3-1) ... @@ -934,7 +966,11 @@ Building tag database... -> Finished parsing the build-deps I: Building the package -I: Running cd /build/reproducible-path/wp2latex-4.12~ds/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-genchanges -S > ../wp2latex_4.12~ds-1_source.changes +I: user script /srv/workspace/pbuilder/1947240/tmp/hooks/A99_set_merged_usr starting +Not re-configuring usrmerge for unstable +I: user script /srv/workspace/pbuilder/1947240/tmp/hooks/A99_set_merged_usr finished +hostname: Name or service not known +I: Running cd /build/reproducible-path/wp2latex-4.12~ds/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-genchanges -S > ../wp2latex_4.12~ds-1_source.changes dpkg-buildpackage: info: source package wp2latex dpkg-buildpackage: info: source version 4.12~ds-1 dpkg-buildpackage: info: source distribution unstable @@ -1281,34 +1317,32 @@ g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c dbllist.cc -o dbllist.o g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c sets.cc -o sets.o g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c std_str.cc -o std_str.o -struct.c: In function 'savestruct': g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c lists.cc -o lists.o +g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c strings.cc -o strings.o +g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c stack.cc -o stack.o +g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c raster.cc -o raster.o +g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c rasterut.cc -o rasterut.o +gcc -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -D_REENTRANT -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c rasterc.c -o rasterc.o +struct.c: In function 'savestruct': struct.c:521:38: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] 521 | writed+=WrQWORD_LoEnd(*(QWORD_*)&e,F);} | ^~~~~~~~~~~ struct.c:524:38: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] 524 | writed+=WrQWORD_HiEnd(*(QWORD_*)&e,F);} | ^~~~~~~~~~~ -g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c strings.cc -o strings.o -g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c stack.cc -o stack.o -g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c raster.cc -o raster.o -In file included from cpbldr.cc:11: -../atoms/include/stringa.h:197:30: warning: friend declaration of 'string del(const string&, int, int)' specifies default arguments and isn't a definition [-fpermissive] - 197 | friend temp_string del(const string &s,int from, int len=1); - | ^~~ -In file included from ../atoms/include/dbllist.h:12, - from cpbldr.cc:12: -../atoms/include/lists.h:99:23: warning: friend declaration of 'int AddSTRSorted(list&, TSorter, const char*, int)' specifies default arguments and isn't a definition [-fpermissive] +In file included from lists.cc:11: +./include/lists.h:99:23: warning: friend declaration of 'int AddSTRSorted(list&, TSorter, const char*, int)' specifies default arguments and isn't a definition [-fpermissive] 99 | friend int AddSTRSorted(list & l,TSorter sorter, const char *str, int AllowDupl=0); | ^~~~~~~~~~~~ -g++ -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -fno-rtti -fno-exceptions -D_REENTRANT -fpermissive -DPOINTER_SIZE=64 -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c rasterut.cc -o rasterut.o -In file included from cplib.cc:6: -../atoms/include/stringa.h:197:30: warning: friend declaration of 'string del(const string&, int, int)' specifies default arguments and isn't a definition [-fpermissive] - 197 | friend temp_string del(const string &s,int from, int len=1); - | ^~~ -In file included from ../atoms/include/dbllist.h:12, - from cplib.cc:7: -../atoms/include/lists.h:99:23: warning: friend declaration of 'int AddSTRSorted(list&, TSorter, const char*, int)' specifies default arguments and isn't a definition [-fpermissive] +lists.cc: In function 'int ListCmp(const list&, const list&)': +lists.cc:430:13: warning: suggest parentheses around assignment used as truth value [-Wparentheses] + 430 | if(j=StrCmp(*cpstr1++,*cpstr2++)) return(j); + | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ +lists.cc: At global scope: +lists.cc:594:5: warning: friend declaration of 'int AddSTRSorted(list&, TSorter, const char*, int)' specifies default arguments and isn't the only declaration [-fpermissive] + 594 | int AddSTRSorted(list & l,TSorter sorter, const char *str, int AllowDupl) + | ^~~~~~~~~~~~ +./include/lists.h:99:23: note: previous declaration of 'int AddSTRSorted(list&, TSorter, const char*, int)' 99 | friend int AddSTRSorted(list & l,TSorter sorter, const char *str, int AllowDupl=0); | ^~~~~~~~~~~~ In file included from ./include/dbllist.h:12, @@ -1316,45 +1350,64 @@ ./include/lists.h:99:23: warning: friend declaration of 'int AddSTRSorted(list&, TSorter, const char*, int)' specifies default arguments and isn't a definition [-fpermissive] 99 | friend int AddSTRSorted(list & l,TSorter sorter, const char *str, int AllowDupl=0); | ^~~~~~~~~~~~ +In file included from strings.cc:15: +./include/stringa.h:197:30: warning: friend declaration of 'string del(const string&, int, int)' specifies default arguments and isn't a definition [-fpermissive] + 197 | friend temp_string del(const string &s,int from, int len=1); + | ^~~ +In file included from cpbldr.cc:11: +../atoms/include/stringa.h:197:30: warning: friend declaration of 'string del(const string&, int, int)' specifies default arguments and isn't a definition [-fpermissive] + 197 | friend temp_string del(const string &s,int from, int len=1); + | ^~~ ./include/dbllist.h: In copy constructor 'doublelist::doublelist(const doublelist&)': ./include/dbllist.h:17:16: warning: 'doublelist::flipped' will be initialized after [-Wreorder] 17 | int flipped; | ^~~~~~~ -gcc -Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -Werror=implicit-function-declaration -ffile-prefix-map=/build/reproducible-path/wp2latex-4.12~ds=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security -mbranch-protection=standard -D_REENTRANT -O2 -Dpng_sizeof=sizeof -DOPTIMISE_SPEED -Wall -I./include/ -c rasterc.c -o rasterc.o dbllist.cc:143:64: warning: base 'list' [-Wreorder] 143 | doublelist::doublelist(const doublelist &dl): flipped(0), list() | ^ dbllist.cc:143:1: warning: when initialized here [-Wreorder] 143 | doublelist::doublelist(const doublelist &dl): flipped(0), list() | ^~~~~~~~~~ -In file included from lists.cc:11: -./include/lists.h:99:23: warning: friend declaration of 'int AddSTRSorted(list&, TSorter, const char*, int)' specifies default arguments and isn't a definition [-fpermissive] +In file included from ../atoms/include/dbllist.h:12, + from cpbldr.cc:12: +../atoms/include/lists.h:99:23: warning: friend declaration of 'int AddSTRSorted(list&, TSorter, const char*, int)' specifies default arguments and isn't a definition [-fpermissive] 99 | friend int AddSTRSorted(list & l,TSorter sorter, const char *str, int AllowDupl=0); | ^~~~~~~~~~~~ -cpbldr.cc: In function 'void WriteCodeGenerator(doublelist&, const char*, const char*)': -cpbldr.cc:284:12: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] - 284 | for(i=0; ilength(s)) || (len<=0) || (from<0) || (length(s)==0)) + | ~~~~^~~~~~~~~~ +strings.cc: At global scope: +strings.cc:797:13: warning: friend declaration of 'string del(const string&, int, int)' specifies default arguments and isn't the only declaration [-fpermissive] + 797 | temp_string del(const string &s, int from, int len) + | ^~~ +./include/stringa.h:197:30: note: previous declaration of 'string del(const string&, int, int)' + 197 | friend temp_string del(const string &s,int from, int len=1); + | ^~~ +strings.cc: In function 'string del(const string&, int, int)': +strings.cc:799:14: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] + 799 | if(length(s)=length(s))||(len<0)||(from<0)||(length(s)==0)) + | ~~~~^~~~~~~~~~~ +strings.cc: In function 'string insert(const string&, const string&, int)': +strings.cc:816:14: warning: comparison of integer expressions of different signedness: 'int' and 'unsigned int' [-Wsign-compare] + 816 | if((position>length(s))||(position<0)) + | ~~~~~~~~^~~~~~~~~~ +strings.cc: In function 'string replacesubstring(const string&, const char*, const char*)': +strings.cc:871:30: warning: comparison of integer expressions of different signedness: 'unsigned int' and 'int' [-Wsign-compare] + 871 | if(substrlen==0 || length(s)