Suggestions for iflang

The following packages have something in common with the package iflang. The packages are ordered in decreasing similarity.

Package ifdraft: Detect draft and final class options
Package ifplatform: Conditionals to test which platform is being used
Package ifvtex: Detects use of VTeX and its facilities
Package ifluatex: Provides the \ifluatex switch
Package ifpdf: Provides the \ifpdf conditional
Package ifetex: Provides \ifetex switch
Package ifxetex: Am I running under XeTeX?
Package ifptex: Check if the engine is pTeX or one of its derivatives
Package iftex: Am I running under pdfTeX, XeTeX or LuaTeX?
Package tex-locale: Localisation support for TeX and LaTeX documents
Package hypgotoe: Links to embedded files
Package ifxptex: Detect pTeX and its derivatives
Package eolgrab: Catch arguments delimited by end of line
Package flags: Setting and clearing of flags in bit fields
Package enparen: Consistent nested brackets
Package bmpsize: Extract size and resolution data from bitmap files
Package chemarr: Arrows for chemists
Package hyphsubst: Substitute hyphenation patterns
Package engord: Converts numbers to English ordinal numbers
Package hypbmsec: Hypertext bookmarks in sectioning commands
Package fibnum: Generate Fibonacci numbers
Package centernot: Centred \not command
Package resizegather: Automatically resize overly large equations
Package rotchiffre: Perform simple rotation cyphers
Package stampinclude: Inclusion based on .aux file date stamps
Package stackrel: Enhancement to the \stackrel command
Package thepdfnumber: Print PDF numbers with minimal digits
Package twoopt: Definitions with two optional arguments
Package settobox: Assigning dimensions of a box to a length register
Package setouterhbox: Set hbox in outer horizontal mode
Package pdfcolparcolumns: Fix colour problems in package parcolumns