Add new configure --with-readline-ldflags/cflags/header flags as brute-force method for clients to tell configure how to compile and link against readline.

FossilOrigin-Name: eaa3a8053eb0935bc47abc1001ff101d79b3f181ac7ea51d3e567cb59ae4c7b3
This commit is contained in:
stephan 2024-10-26 18:17:17 +00:00
parent 59b4f75e0f
commit 784623d599
3 changed files with 180 additions and 139 deletions

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@ -150,7 +150,7 @@ set DUMP_DEFINES_JSON ""; #./config.defines.json
# - [hwaci-opt-if-truthy FLAG {THEN} {ELSE}]
#
# Non-boolean (i.e. string) flags:
# - [opt-val FLAG]
# - [opt-val FLAG ?default?]
#
########################################################################
set flags {
@ -165,8 +165,9 @@ set flags {
readline=1 => {Disable readline support}
largefile=1 => {Disable large file support}
shared=1 => {Disable build of shared libary}
with-readline-lib: => {Readline library}
with-readline-inc: => {Readline include paths}
with-readline-ldflags: => {Readline LDFLAGS, e.g. -lreadline -lncurses}
with-readline-cflags: => {Readline CFLAGS, e.g. -I/path/to/includes}
with-readline-header: => {Full path to readline.h, from which --with-readline-cflags will be derived.}
with-linenoise:DIR => {}
amalgamation=1 => {Disable the amalgamation and instead build all files separately}
load-extension=1 => {Disable loading of external extensions}
@ -197,12 +198,6 @@ if {"" ne $DUMP_DEFINES_JSON} {
options [subst $flags]
unset flags
########################################################################
# Notes about certain historical flags:
#
# --releasemode: libtool-specific (which we don't have now)
#
#
set srcdir $::autosetup(srcdir)
set top_srcdir [get-define abs_top_srcdir]
msg-result "srcdir = $srcdir"
@ -749,10 +744,52 @@ if {1} {
unset ts tsn
}
if {1} {
##########
# Figure out what C libraries are required to compile programs
# that use "readline()" library.
########################################################################
# Jump through proverbial hoops to try to find a working line-editing
# library, setting:
#
# - LDFLAGS_READLINE = linker flags
#
# - CFLAGS_READLINE = compilation flags for clients
#
# - READLINE_H = header in the form "<.../readline.h>" IF we can
# figure it out. shell.c does not currently use this.
proc hwaci-check-readline2 {} {
set check [opt-val with-readline-ldflags][opt-val with-readline-cflags][opt-val with-readline-header]
if {"" ne $check} {
# If any one of --with-readline-(ldflags|cflags|header) are provided,
# those trump any automated searching.
set fL [join [opt-val with-readline-ldflags]]
set v [opt-val with-readline-header]
if {"" eq $v} {
set fC [join [opt-val with-readline-cflags]]
define READLINE_H ""
} else {
# Derive CFLAGS from header file name
set v [file dirname $v]
if {[string match */*line $v]} {
# Special case: if the path includes .../*line/readline.h", set
# the -I to one dir up from that because our sources include
# <readline/readline.h> or <editline/readline.h>. Reminder: if
# auto.def is being run by jimsh0 then [file normalize] will not
# work!
set v [file dirname $v]
}
set fC "-I$v"
# Set READLINE_H to an #include-compatible form of the tail of $v:
set x [opt-val with-readline-header]
set x [string replace $x 0 [string length $v]]
define READLINE_H <$x>
unset x
#hwaci-warn "v=$v READLINE_H=[get-define READLINE_H]"
}
define LDFLAGS_READLINE $fL
define CFLAGS_READLINE $fC
define HAVE_READLINE 1
add-shell-opt -DHAVE_READLINE=1
msg-result "Using client-provided readline flags: $fC $fL"
} elseif {1} {
# Try the project-agnostic readline detector:
add-shell-opt -DHAVE_READLINE=[hwaci-check-readline]
# TODO: reimplement:
# --enable-editline
@ -877,6 +914,8 @@ if {1} {
# XXX AC_SUBST TARGET_HAVE_EDITLINE
# XXX AC_SUBST TARGET_HAVE_LINENOISE
}
}; # hwaci-check-readline2
hwaci-check-readline2
hwaci-if-opt-truthy load-extension {
if {[hwaci-check-function-in-lib dlopen dl]} {
@ -1013,6 +1052,8 @@ hwaci-check-rpath
########################################################################
# Generate the output files.
#
# Potential TODO (unclear): in sqlite3.pc.in, do we need to include
# any CFLAGS_READLINE, CFLAGS_ZLIB, etc in its "Cflags:" section?
hwaci-make-from-dot-in -touch Makefile sqlite3.pc
if {0} {
# Requires a hand-written sqlite_cfg.h.in...

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@ -1,5 +1,5 @@
C Add\stest\scase\sfor\sfts5\strigram\stokenizer.
D 2024-10-26T18:09:13.006
C Add\snew\sconfigure\s--with-readline-ldflags/cflags/header\sflags\sas\sbrute-force\smethod\sfor\sclients\sto\stell\sconfigure\show\sto\scompile\sand\slink\sagainst\sreadline.
D 2024-10-26T18:17:17.351
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Z b40873979d7095705212ffeb9f316fba
# Remove this line to create a well-formed Fossil manifest.

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@ -1 +1 @@
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